Home / 87,867.98-131,746.58-74,545.64

Finding the Fourth Proportional to 87,867.98, 131,746.58 and 74,545.64

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Solution

The fourth proportional to 87,867.98, 131,746.58 and 74,545.64 is: 111,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.98 : 131,746.58 = 74,545.64 : x
  2. Step 2: Convert to fraction form
    87,867.98/131,746.58 = 74,545.64/x
  3. Step 3: Cross multiply
    87,867.98x = 131,746.58 × 74,545.64
  4. Step 4: Simplify right side
    87,867.98x = 9,821,133,123.91
  5. Step 5: Solve for x
    x = 9,821,133,123.91/87,867.98
  6. Step 6: Final answer
    x = 111,771.47

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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.