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Finding the Fourth Proportional to 163,951.38, 245,934.36 and 79,781.04

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Solution

The fourth proportional to 163,951.38, 245,934.36 and 79,781.04 is: 119,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,951.38 : 245,934.36 = 79,781.04 : x
  2. Step 2: Convert to fraction form
    163,951.38/245,934.36 = 79,781.04/x
  3. Step 3: Cross multiply
    163,951.38x = 245,934.36 × 79,781.04
  4. Step 4: Simplify right side
    163,951.38x = 19,620,899,012.53
  5. Step 5: Solve for x
    x = 19,620,899,012.53/163,951.38
  6. Step 6: Final answer
    x = 119,675.11

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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.