Home / 131,991.13-182,147.93-71,561.76

Finding the Fourth Proportional to 131,991.13, 182,147.93 and 71,561.76

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Solution

The fourth proportional to 131,991.13, 182,147.93 and 71,561.76 is: 98,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,991.13 : 182,147.93 = 71,561.76 : x
  2. Step 2: Convert to fraction form
    131,991.13/182,147.93 = 71,561.76/x
  3. Step 3: Cross multiply
    131,991.13x = 182,147.93 × 71,561.76
  4. Step 4: Simplify right side
    131,991.13x = 13,034,826,451.16
  5. Step 5: Solve for x
    x = 13,034,826,451.16/131,991.13
  6. Step 6: Final answer
    x = 98,755.32

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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.