Home / 158,780.70-219,122.55-90,773.10

Finding the Fourth Proportional to 158,780.70, 219,122.55 and 90,773.10

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Solution

The fourth proportional to 158,780.70, 219,122.55 and 90,773.10 is: 125,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,780.70 : 219,122.55 = 90,773.10 : x
  2. Step 2: Convert to fraction form
    158,780.70/219,122.55 = 90,773.10/x
  3. Step 3: Cross multiply
    158,780.70x = 219,122.55 × 90,773.10
  4. Step 4: Simplify right side
    158,780.70x = 19,890,433,143.41
  5. Step 5: Solve for x
    x = 19,890,433,143.41/158,780.70
  6. Step 6: Final answer
    x = 125,269.84

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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.