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Finding the Fourth Proportional to 134,686.48, 185,859.96 and 74,257.12

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Solution

The fourth proportional to 134,686.48, 185,859.96 and 74,257.12 is: 102,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,686.48 : 185,859.96 = 74,257.12 : x
  2. Step 2: Convert to fraction form
    134,686.48/185,859.96 = 74,257.12/x
  3. Step 3: Cross multiply
    134,686.48x = 185,859.96 × 74,257.12
  4. Step 4: Simplify right side
    134,686.48x = 13,801,425,352.92
  5. Step 5: Solve for x
    x = 13,801,425,352.92/134,686.48
  6. Step 6: Final answer
    x = 102,470.76

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1.5x scale

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.