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Finding the Fourth Proportional to 159,785.20, 240,023.40 and 113,129.20

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Solution

The fourth proportional to 159,785.20, 240,023.40 and 113,129.20 is: 169,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,785.20 : 240,023.40 = 113,129.20 : x
  2. Step 2: Convert to fraction form
    159,785.20/240,023.40 = 113,129.20/x
  3. Step 3: Cross multiply
    159,785.20x = 240,023.40 × 113,129.20
  4. Step 4: Simplify right side
    159,785.20x = 27,153,655,223.28
  5. Step 5: Solve for x
    x = 27,153,655,223.28/159,785.20
  6. Step 6: Final answer
    x = 169,938.49

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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.