Home / 129,710.89-194,572.19-39,747.13

Finding the Fourth Proportional to 129,710.89, 194,572.19 and 39,747.13

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Solution

The fourth proportional to 129,710.89, 194,572.19 and 39,747.13 is: 59,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,710.89 : 194,572.19 = 39,747.13 : x
  2. Step 2: Convert to fraction form
    129,710.89/194,572.19 = 39,747.13/x
  3. Step 3: Cross multiply
    129,710.89x = 194,572.19 × 39,747.13
  4. Step 4: Simplify right side
    129,710.89x = 7,733,686,130.31
  5. Step 5: Solve for x
    x = 7,733,686,130.31/129,710.89
  6. Step 6: Final answer
    x = 59,622.49

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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.