Home / 99,964.20-137,861.27-82,941.49

Finding the Fourth Proportional to 99,964.20, 137,861.27 and 82,941.49

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Solution

The fourth proportional to 99,964.20, 137,861.27 and 82,941.49 is: 114,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,964.20 : 137,861.27 = 82,941.49 : x
  2. Step 2: Convert to fraction form
    99,964.20/137,861.27 = 82,941.49/x
  3. Step 3: Cross multiply
    99,964.20x = 137,861.27 × 82,941.49
  4. Step 4: Simplify right side
    99,964.20x = 11,434,418,043.08
  5. Step 5: Solve for x
    x = 11,434,418,043.08/99,964.20
  6. Step 6: Final answer
    x = 114,385.13

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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.