Home / 140,211.38-193,513.92-89,170.90

Finding the Fourth Proportional to 140,211.38, 193,513.92 and 89,170.90

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Solution

The fourth proportional to 140,211.38, 193,513.92 and 89,170.90 is: 123,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.38 : 193,513.92 = 89,170.90 : x
  2. Step 2: Convert to fraction form
    140,211.38/193,513.92 = 89,170.90/x
  3. Step 3: Cross multiply
    140,211.38x = 193,513.92 × 89,170.90
  4. Step 4: Simplify right side
    140,211.38x = 17,255,809,441.36
  5. Step 5: Solve for x
    x = 17,255,809,441.36/140,211.38
  6. Step 6: Final answer
    x = 123,069.96

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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.