Home / 131,481.04-181,443.80-71,865.04

Finding the Fourth Proportional to 131,481.04, 181,443.80 and 71,865.04

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Solution

The fourth proportional to 131,481.04, 181,443.80 and 71,865.04 is: 99,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481.04 : 181,443.80 = 71,865.04 : x
  2. Step 2: Convert to fraction form
    131,481.04/181,443.80 = 71,865.04/x
  3. Step 3: Cross multiply
    131,481.04x = 181,443.80 × 71,865.04
  4. Step 4: Simplify right side
    131,481.04x = 13,039,465,944.75
  5. Step 5: Solve for x
    x = 13,039,465,944.75/131,481.04
  6. Step 6: Final answer
    x = 99,173.74

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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.