Home / 135,555.17-187,066.13-75,134.89

Finding the Fourth Proportional to 135,555.17, 187,066.13 and 75,134.89

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Solution

The fourth proportional to 135,555.17, 187,066.13 and 75,134.89 is: 103,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,555.17 : 187,066.13 = 75,134.89 : x
  2. Step 2: Convert to fraction form
    135,555.17/187,066.13 = 75,134.89/x
  3. Step 3: Cross multiply
    135,555.17x = 187,066.13 × 75,134.89
  4. Step 4: Simplify right side
    135,555.17x = 14,055,191,789.27
  5. Step 5: Solve for x
    x = 14,055,191,789.27/135,555.17
  6. Step 6: Final answer
    x = 103,686.14

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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.