Home / 154,742.90-232,179.98-84,540.20

Finding the Fourth Proportional to 154,742.90, 232,179.98 and 84,540.20

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Solution

The fourth proportional to 154,742.90, 232,179.98 and 84,540.20 is: 126,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,742.90 : 232,179.98 = 84,540.20 : x
  2. Step 2: Convert to fraction form
    154,742.90/232,179.98 = 84,540.20/x
  3. Step 3: Cross multiply
    154,742.90x = 232,179.98 × 84,540.20
  4. Step 4: Simplify right side
    154,742.90x = 19,628,541,945.20
  5. Step 5: Solve for x
    x = 19,628,541,945.20/154,742.90
  6. Step 6: Final answer
    x = 126,846.16

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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.