Home / 90,694.52-135,355.95-88,332.56

Finding the Fourth Proportional to 90,694.52, 135,355.95 and 88,332.56

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Solution

The fourth proportional to 90,694.52, 135,355.95 and 88,332.56 is: 131,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,694.52 : 135,355.95 = 88,332.56 : x
  2. Step 2: Convert to fraction form
    90,694.52/135,355.95 = 88,332.56/x
  3. Step 3: Cross multiply
    90,694.52x = 135,355.95 × 88,332.56
  4. Step 4: Simplify right side
    90,694.52x = 11,956,337,574.73
  5. Step 5: Solve for x
    x = 11,956,337,574.73/90,694.52
  6. Step 6: Final answer
    x = 131,830.87

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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.