Home / 107,129.28-147,839.64-59,383.44

Finding the Fourth Proportional to 107,129.28, 147,839.64 and 59,383.44

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Solution

The fourth proportional to 107,129.28, 147,839.64 and 59,383.44 is: 81,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,129.28 : 147,839.64 = 59,383.44 : x
  2. Step 2: Convert to fraction form
    107,129.28/147,839.64 = 59,383.44/x
  3. Step 3: Cross multiply
    107,129.28x = 147,839.64 × 59,383.44
  4. Step 4: Simplify right side
    107,129.28x = 8,779,226,391.56
  5. Step 5: Solve for x
    x = 8,779,226,391.56/107,129.28
  6. Step 6: Final answer
    x = 81,949.83

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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.