Home / 131,991.10-182,149.02-71,561.58

Finding the Fourth Proportional to 131,991.10, 182,149.02 and 71,561.58

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Solution

The fourth proportional to 131,991.10, 182,149.02 and 71,561.58 is: 98,755.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,991.10 : 182,149.02 = 71,561.58 : x
  2. Step 2: Convert to fraction form
    131,991.10/182,149.02 = 71,561.58/x
  3. Step 3: Cross multiply
    131,991.10x = 182,149.02 × 71,561.58
  4. Step 4: Simplify right side
    131,991.10x = 13,034,871,666.65
  5. Step 5: Solve for x
    x = 13,034,871,666.65/131,991.10
  6. Step 6: Final answer
    x = 98,755.69

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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.