Home / 99,763.92-137,703-58,965.84

Finding the Fourth Proportional to 99,763.92, 137,703 and 58,965.84

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Solution

The fourth proportional to 99,763.92, 137,703 and 58,965.84 is: 81,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,763.92 : 137,703 = 58,965.84 : x
  2. Step 2: Convert to fraction form
    99,763.92/137,703 = 58,965.84/x
  3. Step 3: Cross multiply
    99,763.92x = 137,703 × 58,965.84
  4. Step 4: Simplify right side
    99,763.92x = 8,119,773,065.52
  5. Step 5: Solve for x
    x = 8,119,773,065.52/99,763.92
  6. Step 6: Final answer
    x = 81,389.88

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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.