Home / 132,433.62-182,757.78-78,017.42

Finding the Fourth Proportional to 132,433.62, 182,757.78 and 78,017.42

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Solution

The fourth proportional to 132,433.62, 182,757.78 and 78,017.42 is: 107,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,433.62 : 182,757.78 = 78,017.42 : x
  2. Step 2: Convert to fraction form
    132,433.62/182,757.78 = 78,017.42/x
  3. Step 3: Cross multiply
    132,433.62x = 182,757.78 × 78,017.42
  4. Step 4: Simplify right side
    132,433.62x = 14,258,290,480.53
  5. Step 5: Solve for x
    x = 14,258,290,480.53/132,433.62
  6. Step 6: Final answer
    x = 107,663.68

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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.