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Finding the Fourth Proportional to 124,609, 171,960.58 and 79,897

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Solution

The fourth proportional to 124,609, 171,960.58 and 79,897 is: 110,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609 : 171,960.58 = 79,897 : x
  2. Step 2: Convert to fraction form
    124,609/171,960.58 = 79,897/x
  3. Step 3: Cross multiply
    124,609x = 171,960.58 × 79,897
  4. Step 4: Simplify right side
    124,609x = 13,739,134,460.26
  5. Step 5: Solve for x
    x = 13,739,134,460.26/124,609
  6. Step 6: Final answer
    x = 110,257.96

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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.