Home / 119,724.64-165,229.86-66,020.20

Finding the Fourth Proportional to 119,724.64, 165,229.86 and 66,020.20

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Solution

The fourth proportional to 119,724.64, 165,229.86 and 66,020.20 is: 91,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,724.64 : 165,229.86 = 66,020.20 : x
  2. Step 2: Convert to fraction form
    119,724.64/165,229.86 = 66,020.20/x
  3. Step 3: Cross multiply
    119,724.64x = 165,229.86 × 66,020.20
  4. Step 4: Simplify right side
    119,724.64x = 10,908,508,403.17
  5. Step 5: Solve for x
    x = 10,908,508,403.17/119,724.64
  6. Step 6: Final answer
    x = 91,113.31

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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.