Home / 131,760.96-181,829.90-71,331.58

Finding the Fourth Proportional to 131,760.96, 181,829.90 and 71,331.58

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Solution

The fourth proportional to 131,760.96, 181,829.90 and 71,331.58 is: 98,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,760.96 : 181,829.90 = 71,331.58 : x
  2. Step 2: Convert to fraction form
    131,760.96/181,829.90 = 71,331.58/x
  3. Step 3: Cross multiply
    131,760.96x = 181,829.90 × 71,331.58
  4. Step 4: Simplify right side
    131,760.96x = 12,970,214,058.24
  5. Step 5: Solve for x
    x = 12,970,214,058.24/131,760.96
  6. Step 6: Final answer
    x = 98,437.46

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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.