Home / 135,707.14-187,278.86-75,275.82

Finding the Fourth Proportional to 135,707.14, 187,278.86 and 75,275.82

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Solution

The fourth proportional to 135,707.14, 187,278.86 and 75,275.82 is: 103,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,707.14 : 187,278.86 = 75,275.82 : x
  2. Step 2: Convert to fraction form
    135,707.14/187,278.86 = 75,275.82/x
  3. Step 3: Cross multiply
    135,707.14x = 187,278.86 × 75,275.82
  4. Step 4: Simplify right side
    135,707.14x = 14,097,569,755.17
  5. Step 5: Solve for x
    x = 14,097,569,755.17/135,707.14
  6. Step 6: Final answer
    x = 103,882.30

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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.