Home / 120,116.46-165,763.78-66,402.30

Finding the Fourth Proportional to 120,116.46, 165,763.78 and 66,402.30

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Solution

The fourth proportional to 120,116.46, 165,763.78 and 66,402.30 is: 91,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,116.46 : 165,763.78 = 66,402.30 : x
  2. Step 2: Convert to fraction form
    120,116.46/165,763.78 = 66,402.30/x
  3. Step 3: Cross multiply
    120,116.46x = 165,763.78 × 66,402.30
  4. Step 4: Simplify right side
    120,116.46x = 11,007,096,248.69
  5. Step 5: Solve for x
    x = 11,007,096,248.69/120,116.46
  6. Step 6: Final answer
    x = 91,636.87

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1.5x scale

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.