Home / 135,617.30-187,151.56-75,186.39

Finding the Fourth Proportional to 135,617.30, 187,151.56 and 75,186.39

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Solution

The fourth proportional to 135,617.30, 187,151.56 and 75,186.39 is: 103,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,617.30 : 187,151.56 = 75,186.39 : x
  2. Step 2: Convert to fraction form
    135,617.30/187,151.56 = 75,186.39/x
  3. Step 3: Cross multiply
    135,617.30x = 187,151.56 × 75,186.39
  4. Step 4: Simplify right side
    135,617.30x = 14,071,250,693.12
  5. Step 5: Solve for x
    x = 14,071,250,693.12/135,617.30
  6. Step 6: Final answer
    x = 103,757.05

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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.