Home / 103,318.92-142,543.44-67,529.59

Finding the Fourth Proportional to 103,318.92, 142,543.44 and 67,529.59

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Solution

The fourth proportional to 103,318.92, 142,543.44 and 67,529.59 is: 93,166.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,318.92 : 142,543.44 = 67,529.59 : x
  2. Step 2: Convert to fraction form
    103,318.92/142,543.44 = 67,529.59/x
  3. Step 3: Cross multiply
    103,318.92x = 142,543.44 × 67,529.59
  4. Step 4: Simplify right side
    103,318.92x = 9,625,899,704.03
  5. Step 5: Solve for x
    x = 9,625,899,704.03/103,318.92
  6. Step 6: Final answer
    x = 93,166.86

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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.