Home / 154,650.93-213,414.79-90,116.13

Finding the Fourth Proportional to 154,650.93, 213,414.79 and 90,116.13

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Solution

The fourth proportional to 154,650.93, 213,414.79 and 90,116.13 is: 124,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,650.93 : 213,414.79 = 90,116.13 : x
  2. Step 2: Convert to fraction form
    154,650.93/213,414.79 = 90,116.13/x
  3. Step 3: Cross multiply
    154,650.93x = 213,414.79 × 90,116.13
  4. Step 4: Simplify right side
    154,650.93x = 19,232,114,503.09
  5. Step 5: Solve for x
    x = 19,232,114,503.09/154,650.93
  6. Step 6: Final answer
    x = 124,358.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.