Home / 104,251.92-143,938.80-66,577.20

Finding the Fourth Proportional to 104,251.92, 143,938.80 and 66,577.20

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Solution

The fourth proportional to 104,251.92, 143,938.80 and 66,577.20 is: 91,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,251.92 : 143,938.80 = 66,577.20 : x
  2. Step 2: Convert to fraction form
    104,251.92/143,938.80 = 66,577.20/x
  3. Step 3: Cross multiply
    104,251.92x = 143,938.80 × 66,577.20
  4. Step 4: Simplify right side
    104,251.92x = 9,583,042,275.36
  5. Step 5: Solve for x
    x = 9,583,042,275.36/104,251.92
  6. Step 6: Final answer
    x = 91,921.97

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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.