Home / 131,576.94-181,575.78-71,147.16

Finding the Fourth Proportional to 131,576.94, 181,575.78 and 71,147.16

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Solution

The fourth proportional to 131,576.94, 181,575.78 and 71,147.16 is: 98,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.94 : 181,575.78 = 71,147.16 : x
  2. Step 2: Convert to fraction form
    131,576.94/181,575.78 = 71,147.16/x
  3. Step 3: Cross multiply
    131,576.94x = 181,575.78 × 71,147.16
  4. Step 4: Simplify right side
    131,576.94x = 12,918,601,071.78
  5. Step 5: Solve for x
    x = 12,918,601,071.78/131,576.94
  6. Step 6: Final answer
    x = 98,182.87

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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.