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Finding the Fourth Proportional to 83,832.63, 125,749.25 and 79,628.12

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Solution

The fourth proportional to 83,832.63, 125,749.25 and 79,628.12 is: 119,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,832.63 : 125,749.25 = 79,628.12 : x
  2. Step 2: Convert to fraction form
    83,832.63/125,749.25 = 79,628.12/x
  3. Step 3: Cross multiply
    83,832.63x = 125,749.25 × 79,628.12
  4. Step 4: Simplify right side
    83,832.63x = 10,013,176,368.91
  5. Step 5: Solve for x
    x = 10,013,176,368.91/83,832.63
  6. Step 6: Final answer
    x = 119,442.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.