Home / 223,104.29-307,882.20-121,127.72

Finding the Fourth Proportional to 223,104.29, 307,882.20 and 121,127.72

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Solution

The fourth proportional to 223,104.29, 307,882.20 and 121,127.72 is: 167,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,104.29 : 307,882.20 = 121,127.72 : x
  2. Step 2: Convert to fraction form
    223,104.29/307,882.20 = 121,127.72/x
  3. Step 3: Cross multiply
    223,104.29x = 307,882.20 × 121,127.72
  4. Step 4: Simplify right side
    223,104.29x = 37,293,067,375.17
  5. Step 5: Solve for x
    x = 37,293,067,375.17/223,104.29
  6. Step 6: Final answer
    x = 167,155.32

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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.