Home / 121,251.38-181,566.51-101,211.05

Finding the Fourth Proportional to 121,251.38, 181,566.51 and 101,211.05

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Solution

The fourth proportional to 121,251.38, 181,566.51 and 101,211.05 is: 151,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,251.38 : 181,566.51 = 101,211.05 : x
  2. Step 2: Convert to fraction form
    121,251.38/181,566.51 = 101,211.05/x
  3. Step 3: Cross multiply
    121,251.38x = 181,566.51 × 101,211.05
  4. Step 4: Simplify right side
    121,251.38x = 18,376,536,214.10
  5. Step 5: Solve for x
    x = 18,376,536,214.10/121,251.38
  6. Step 6: Final answer
    x = 151,557.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.