Home / 107,531.04-161,177.04-81,150.24

Finding the Fourth Proportional to 107,531.04, 161,177.04 and 81,150.24

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Solution

The fourth proportional to 107,531.04, 161,177.04 and 81,150.24 is: 121,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,531.04 : 161,177.04 = 81,150.24 : x
  2. Step 2: Convert to fraction form
    107,531.04/161,177.04 = 81,150.24/x
  3. Step 3: Cross multiply
    107,531.04x = 161,177.04 × 81,150.24
  4. Step 4: Simplify right side
    107,531.04x = 13,079,555,478.49
  5. Step 5: Solve for x
    x = 13,079,555,478.49/107,531.04
  6. Step 6: Final answer
    x = 121,635.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.