Home / 131,789.50-181,869.24-71,360.13

Finding the Fourth Proportional to 131,789.50, 181,869.24 and 71,360.13

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Solution

The fourth proportional to 131,789.50, 181,869.24 and 71,360.13 is: 98,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789.50 : 181,869.24 = 71,360.13 : x
  2. Step 2: Convert to fraction form
    131,789.50/181,869.24 = 71,360.13/x
  3. Step 3: Cross multiply
    131,789.50x = 181,869.24 × 71,360.13
  4. Step 4: Simplify right side
    131,789.50x = 12,978,212,609.40
  5. Step 5: Solve for x
    x = 12,978,212,609.40/131,789.50
  6. Step 6: Final answer
    x = 98,476.83

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1.5x scale

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.