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Finding the Fourth Proportional to 129,752.44, 194,656.92 and 39,795.20

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Solution

The fourth proportional to 129,752.44, 194,656.92 and 39,795.20 is: 59,701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,752.44 : 194,656.92 = 39,795.20 : x
  2. Step 2: Convert to fraction form
    129,752.44/194,656.92 = 39,795.20/x
  3. Step 3: Cross multiply
    129,752.44x = 194,656.92 × 39,795.20
  4. Step 4: Simplify right side
    129,752.44x = 7,746,411,062.78
  5. Step 5: Solve for x
    x = 7,746,411,062.78/129,752.44
  6. Step 6: Final answer
    x = 59,701.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.