Home / 131,565.23-181,560.05-71,135.85

Finding the Fourth Proportional to 131,565.23, 181,560.05 and 71,135.85

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Solution

The fourth proportional to 131,565.23, 181,560.05 and 71,135.85 is: 98,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,565.23 : 181,560.05 = 71,135.85 : x
  2. Step 2: Convert to fraction form
    131,565.23/181,560.05 = 71,135.85/x
  3. Step 3: Cross multiply
    131,565.23x = 181,560.05 × 71,135.85
  4. Step 4: Simplify right side
    131,565.23x = 12,915,429,074.72
  5. Step 5: Solve for x
    x = 12,915,429,074.72/131,565.23
  6. Step 6: Final answer
    x = 98,167.50

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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.