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Finding the Fourth Proportional to 124,514, 171,829.32 and 79,802

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Solution

The fourth proportional to 124,514, 171,829.32 and 79,802 is: 110,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,514 : 171,829.32 = 79,802 : x
  2. Step 2: Convert to fraction form
    124,514/171,829.32 = 79,802/x
  3. Step 3: Cross multiply
    124,514x = 171,829.32 × 79,802
  4. Step 4: Simplify right side
    124,514x = 13,712,323,394.64
  5. Step 5: Solve for x
    x = 13,712,323,394.64/124,514
  6. Step 6: Final answer
    x = 110,126.76

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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.