Home / 135,572.13-187,086.56-75,142.22

Finding the Fourth Proportional to 135,572.13, 187,086.56 and 75,142.22

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Solution

The fourth proportional to 135,572.13, 187,086.56 and 75,142.22 is: 103,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,572.13 : 187,086.56 = 75,142.22 : x
  2. Step 2: Convert to fraction form
    135,572.13/187,086.56 = 75,142.22/x
  3. Step 3: Cross multiply
    135,572.13x = 187,086.56 × 75,142.22
  4. Step 4: Simplify right side
    135,572.13x = 14,058,098,139.42
  5. Step 5: Solve for x
    x = 14,058,098,139.42/135,572.13
  6. Step 6: Final answer
    x = 103,694.60

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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.