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Finding the Fourth Proportional to 135,681.54, 203,454 and 79,535.04

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Solution

The fourth proportional to 135,681.54, 203,454 and 79,535.04 is: 119,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,681.54 : 203,454 = 79,535.04 : x
  2. Step 2: Convert to fraction form
    135,681.54/203,454 = 79,535.04/x
  3. Step 3: Cross multiply
    135,681.54x = 203,454 × 79,535.04
  4. Step 4: Simplify right side
    135,681.54x = 16,181,722,028.16
  5. Step 5: Solve for x
    x = 16,181,722,028.16/135,681.54
  6. Step 6: Final answer
    x = 119,262.52

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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.