Home / 135,822.32-187,446.68-79,251.92

Finding the Fourth Proportional to 135,822.32, 187,446.68 and 79,251.92

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Solution

The fourth proportional to 135,822.32, 187,446.68 and 79,251.92 is: 109,374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,822.32 : 187,446.68 = 79,251.92 : x
  2. Step 2: Convert to fraction form
    135,822.32/187,446.68 = 79,251.92/x
  3. Step 3: Cross multiply
    135,822.32x = 187,446.68 × 79,251.92
  4. Step 4: Simplify right side
    135,822.32x = 14,855,509,287.63
  5. Step 5: Solve for x
    x = 14,855,509,287.63/135,822.32
  6. Step 6: Final answer
    x = 109,374.58

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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.