Home / 161,873.18-223,385.13-90,251.76

Finding the Fourth Proportional to 161,873.18, 223,385.13 and 90,251.76

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Solution

The fourth proportional to 161,873.18, 223,385.13 and 90,251.76 is: 124,547.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,873.18 : 223,385.13 = 90,251.76 : x
  2. Step 2: Convert to fraction form
    161,873.18/223,385.13 = 90,251.76/x
  3. Step 3: Cross multiply
    161,873.18x = 223,385.13 × 90,251.76
  4. Step 4: Simplify right side
    161,873.18x = 20,160,901,978.02
  5. Step 5: Solve for x
    x = 20,160,901,978.02/161,873.18
  6. Step 6: Final answer
    x = 124,547.51

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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.