Home / 143,458.06-197,891.22-86,082.13

Finding the Fourth Proportional to 143,458.06, 197,891.22 and 86,082.13

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Solution

The fourth proportional to 143,458.06, 197,891.22 and 86,082.13 is: 118,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,458.06 : 197,891.22 = 86,082.13 : x
  2. Step 2: Convert to fraction form
    143,458.06/197,891.22 = 86,082.13/x
  3. Step 3: Cross multiply
    143,458.06x = 197,891.22 × 86,082.13
  4. Step 4: Simplify right side
    143,458.06x = 17,034,897,725.90
  5. Step 5: Solve for x
    x = 17,034,897,725.90/143,458.06
  6. Step 6: Final answer
    x = 118,744.79

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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.