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Finding the Fourth Proportional to 161,951.22, 223,493.02 and 90,329.40

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Solution

The fourth proportional to 161,951.22, 223,493.02 and 90,329.40 is: 124,654.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,951.22 : 223,493.02 = 90,329.40 : x
  2. Step 2: Convert to fraction form
    161,951.22/223,493.02 = 90,329.40/x
  3. Step 3: Cross multiply
    161,951.22x = 223,493.02 × 90,329.40
  4. Step 4: Simplify right side
    161,951.22x = 20,187,990,400.79
  5. Step 5: Solve for x
    x = 20,187,990,400.79/161,951.22
  6. Step 6: Final answer
    x = 124,654.76

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1.5x scale

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.