Home / 135,536.11-187,017.12-90,281.61

Finding the Fourth Proportional to 135,536.11, 187,017.12 and 90,281.61

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Solution

The fourth proportional to 135,536.11, 187,017.12 and 90,281.61 is: 124,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,536.11 : 187,017.12 = 90,281.61 : x
  2. Step 2: Convert to fraction form
    135,536.11/187,017.12 = 90,281.61/x
  3. Step 3: Cross multiply
    135,536.11x = 187,017.12 × 90,281.61
  4. Step 4: Simplify right side
    135,536.11x = 16,884,206,691.16
  5. Step 5: Solve for x
    x = 16,884,206,691.16/135,536.11
  6. Step 6: Final answer
    x = 124,573.50

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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.