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Finding the Fourth Proportional to 129,807.52, 179,131.10 and 73,214.44

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Solution

The fourth proportional to 129,807.52, 179,131.10 and 73,214.44 is: 101,034.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,807.52 : 179,131.10 = 73,214.44 : x
  2. Step 2: Convert to fraction form
    129,807.52/179,131.10 = 73,214.44/x
  3. Step 3: Cross multiply
    129,807.52x = 179,131.10 × 73,214.44
  4. Step 4: Simplify right side
    129,807.52x = 13,114,983,173.08
  5. Step 5: Solve for x
    x = 13,114,983,173.08/129,807.52
  6. Step 6: Final answer
    x = 101,034.08

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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.