Home / 154,850,123.80-232,275,185.70-85,975,370.20

Finding the Fourth Proportional to 154,850,123.80, 232,275,185.70 and 85,975,370.20

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Solution

The fourth proportional to 154,850,123.80, 232,275,185.70 and 85,975,370.20 is: 128,963,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,850,123.80 : 232,275,185.70 = 85,975,370.20 : x
  2. Step 2: Convert to fraction form
    154,850,123.80/232,275,185.70 = 85,975,370.20/x
  3. Step 3: Cross multiply
    154,850,123.80x = 232,275,185.70 × 85,975,370.20
  4. Step 4: Simplify right side
    154,850,123.80x = 19,969,945,078,831,244
  5. Step 5: Solve for x
    x = 19,969,945,078,831,244/154,850,123.80
  6. Step 6: Final answer
    x = 128,963,055.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.