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Finding the Fourth Proportional to 129,973.86, 179,350.92 and 73,374.30

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Solution

The fourth proportional to 129,973.86, 179,350.92 and 73,374.30 is: 101,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.86 : 179,350.92 = 73,374.30 : x
  2. Step 2: Convert to fraction form
    129,973.86/179,350.92 = 73,374.30/x
  3. Step 3: Cross multiply
    129,973.86x = 179,350.92 × 73,374.30
  4. Step 4: Simplify right side
    129,973.86x = 13,159,748,209.36
  5. Step 5: Solve for x
    x = 13,159,748,209.36/129,973.86
  6. Step 6: Final answer
    x = 101,249.19

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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.