Home / 140,250.19-193,561.82-78,998.38

Finding the Fourth Proportional to 140,250.19, 193,561.82 and 78,998.38

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Solution

The fourth proportional to 140,250.19, 193,561.82 and 78,998.38 is: 109,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,250.19 : 193,561.82 = 78,998.38 : x
  2. Step 2: Convert to fraction form
    140,250.19/193,561.82 = 78,998.38/x
  3. Step 3: Cross multiply
    140,250.19x = 193,561.82 × 78,998.38
  4. Step 4: Simplify right side
    140,250.19x = 15,291,070,209.85
  5. Step 5: Solve for x
    x = 15,291,070,209.85/140,250.19
  6. Step 6: Final answer
    x = 109,027.09

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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.