Home / 123,988.14-171,102.87-67,399.47

Finding the Fourth Proportional to 123,988.14, 171,102.87 and 67,399.47

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Solution

The fourth proportional to 123,988.14, 171,102.87 and 67,399.47 is: 93,010.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,988.14 : 171,102.87 = 67,399.47 : x
  2. Step 2: Convert to fraction form
    123,988.14/171,102.87 = 67,399.47/x
  3. Step 3: Cross multiply
    123,988.14x = 171,102.87 × 67,399.47
  4. Step 4: Simplify right side
    123,988.14x = 11,532,242,753.48
  5. Step 5: Solve for x
    x = 11,532,242,753.48/123,988.14
  6. Step 6: Final answer
    x = 93,010.85

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1.5x scale

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.