Home / 131,577.13-181,576.31-71,147.63

Finding the Fourth Proportional to 131,577.13, 181,576.31 and 71,147.63

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Solution

The fourth proportional to 131,577.13, 181,576.31 and 71,147.63 is: 98,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,577.13 : 181,576.31 = 71,147.63 : x
  2. Step 2: Convert to fraction form
    131,577.13/181,576.31 = 71,147.63/x
  3. Step 3: Cross multiply
    131,577.13x = 181,576.31 × 71,147.63
  4. Step 4: Simplify right side
    131,577.13x = 12,918,724,619.05
  5. Step 5: Solve for x
    x = 12,918,724,619.05/131,577.13
  6. Step 6: Final answer
    x = 98,183.66

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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.