Home / 135,528.15-187,034.80-75,098.65

Finding the Fourth Proportional to 135,528.15, 187,034.80 and 75,098.65

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Solution

The fourth proportional to 135,528.15, 187,034.80 and 75,098.65 is: 103,639.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,528.15 : 187,034.80 = 75,098.65 : x
  2. Step 2: Convert to fraction form
    135,528.15/187,034.80 = 75,098.65/x
  3. Step 3: Cross multiply
    135,528.15x = 187,034.80 × 75,098.65
  4. Step 4: Simplify right side
    135,528.15x = 14,046,060,819.19
  5. Step 5: Solve for x
    x = 14,046,060,819.19/135,528.15
  6. Step 6: Final answer
    x = 103,639.43

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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.