Home / 161,680.80-223,123.40-90,061.96

Finding the Fourth Proportional to 161,680.80, 223,123.40 and 90,061.96

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Solution

The fourth proportional to 161,680.80, 223,123.40 and 90,061.96 is: 124,287.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,680.80 : 223,123.40 = 90,061.96 : x
  2. Step 2: Convert to fraction form
    161,680.80/223,123.40 = 90,061.96/x
  3. Step 3: Cross multiply
    161,680.80x = 223,123.40 × 90,061.96
  4. Step 4: Simplify right side
    161,680.80x = 20,094,930,725.86
  5. Step 5: Solve for x
    x = 20,094,930,725.86/161,680.80
  6. Step 6: Final answer
    x = 124,287.68

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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.