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Finding the Fourth Proportional to 134,412.52, 185,487.80 and 73,981.86

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Solution

The fourth proportional to 134,412.52, 185,487.80 and 73,981.86 is: 102,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,412.52 : 185,487.80 = 73,981.86 : x
  2. Step 2: Convert to fraction form
    134,412.52/185,487.80 = 73,981.86/x
  3. Step 3: Cross multiply
    134,412.52x = 185,487.80 × 73,981.86
  4. Step 4: Simplify right side
    134,412.52x = 13,722,732,451.31
  5. Step 5: Solve for x
    x = 13,722,732,451.31/134,412.52
  6. Step 6: Final answer
    x = 102,094.15

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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.