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Finding the Fourth Proportional to 124,367.30, 171,654.57 and 79,036.44

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Solution

The fourth proportional to 124,367.30, 171,654.57 and 79,036.44 is: 109,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,367.30 : 171,654.57 = 79,036.44 : x
  2. Step 2: Convert to fraction form
    124,367.30/171,654.57 = 79,036.44/x
  3. Step 3: Cross multiply
    124,367.30x = 171,654.57 × 79,036.44
  4. Step 4: Simplify right side
    124,367.30x = 13,566,966,122.53
  5. Step 5: Solve for x
    x = 13,566,966,122.53/124,367.30
  6. Step 6: Final answer
    x = 109,087.89

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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.