Home / 138,427.73-207,543.18-66,298.04

Finding the Fourth Proportional to 138,427.73, 207,543.18 and 66,298.04

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Solution

The fourth proportional to 138,427.73, 207,543.18 and 66,298.04 is: 99,399.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,427.73 : 207,543.18 = 66,298.04 : x
  2. Step 2: Convert to fraction form
    138,427.73/207,543.18 = 66,298.04/x
  3. Step 3: Cross multiply
    138,427.73x = 207,543.18 × 66,298.04
  4. Step 4: Simplify right side
    138,427.73x = 13,759,706,049.37
  5. Step 5: Solve for x
    x = 13,759,706,049.37/138,427.73
  6. Step 6: Final answer
    x = 99,399.93

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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.