Home / 134,685.32-185,864.94-74,255.72

Finding the Fourth Proportional to 134,685.32, 185,864.94 and 74,255.72

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Solution

The fourth proportional to 134,685.32, 185,864.94 and 74,255.72 is: 102,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,685.32 : 185,864.94 = 74,255.72 : x
  2. Step 2: Convert to fraction form
    134,685.32/185,864.94 = 74,255.72/x
  3. Step 3: Cross multiply
    134,685.32x = 185,864.94 × 74,255.72
  4. Step 4: Simplify right side
    134,685.32x = 13,801,534,013.13
  5. Step 5: Solve for x
    x = 13,801,534,013.13/134,685.32
  6. Step 6: Final answer
    x = 102,472.45

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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.