Home / 129,046.48-178,052.98-75,300.82

Finding the Fourth Proportional to 129,046.48, 178,052.98 and 75,300.82

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Solution

The fourth proportional to 129,046.48, 178,052.98 and 75,300.82 is: 103,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,046.48 : 178,052.98 = 75,300.82 : x
  2. Step 2: Convert to fraction form
    129,046.48/178,052.98 = 75,300.82/x
  3. Step 3: Cross multiply
    129,046.48x = 178,052.98 × 75,300.82
  4. Step 4: Simplify right side
    129,046.48x = 13,407,535,397.44
  5. Step 5: Solve for x
    x = 13,407,535,397.44/129,046.48
  6. Step 6: Final answer
    x = 103,896.95

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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.