Home / 87,784.04-131,329.61-67,640.93

Finding the Fourth Proportional to 87,784.04, 131,329.61 and 67,640.93

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Solution

The fourth proportional to 87,784.04, 131,329.61 and 67,640.93 is: 101,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,784.04 : 131,329.61 = 67,640.93 : x
  2. Step 2: Convert to fraction form
    87,784.04/131,329.61 = 67,640.93/x
  3. Step 3: Cross multiply
    87,784.04x = 131,329.61 × 67,640.93
  4. Step 4: Simplify right side
    87,784.04x = 8,883,255,962.08
  5. Step 5: Solve for x
    x = 8,883,255,962.08/87,784.04
  6. Step 6: Final answer
    x = 101,194.44

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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.