Home / 121,932.38-168,273.22-68,214.20

Finding the Fourth Proportional to 121,932.38, 168,273.22 and 68,214.20

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Solution

The fourth proportional to 121,932.38, 168,273.22 and 68,214.20 is: 94,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,932.38 : 168,273.22 = 68,214.20 : x
  2. Step 2: Convert to fraction form
    121,932.38/168,273.22 = 68,214.20/x
  3. Step 3: Cross multiply
    121,932.38x = 168,273.22 × 68,214.20
  4. Step 4: Simplify right side
    121,932.38x = 11,478,622,071.82
  5. Step 5: Solve for x
    x = 11,478,622,071.82/121,932.38
  6. Step 6: Final answer
    x = 94,139.24

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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.