Home / 90,700.29-135,364.50-88,338.33

Finding the Fourth Proportional to 90,700.29, 135,364.50 and 88,338.33

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Solution

The fourth proportional to 90,700.29, 135,364.50 and 88,338.33 is: 131,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,700.29 : 135,364.50 = 88,338.33 : x
  2. Step 2: Convert to fraction form
    90,700.29/135,364.50 = 88,338.33/x
  3. Step 3: Cross multiply
    90,700.29x = 135,364.50 × 88,338.33
  4. Step 4: Simplify right side
    90,700.29x = 11,957,873,871.29
  5. Step 5: Solve for x
    x = 11,957,873,871.29/90,700.29
  6. Step 6: Final answer
    x = 131,839.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.