Home / 87,147.39-119,956.95-76,366.70

Finding the Fourth Proportional to 87,147.39, 119,956.95 and 76,366.70

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Solution

The fourth proportional to 87,147.39, 119,956.95 and 76,366.70 is: 105,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,147.39 : 119,956.95 = 76,366.70 : x
  2. Step 2: Convert to fraction form
    87,147.39/119,956.95 = 76,366.70/x
  3. Step 3: Cross multiply
    87,147.39x = 119,956.95 × 76,366.70
  4. Step 4: Simplify right side
    87,147.39x = 9,160,716,263.62
  5. Step 5: Solve for x
    x = 9,160,716,263.62/87,147.39
  6. Step 6: Final answer
    x = 105,117.50

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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.