Home / 143,769.10-198,402.14-83,375.55

Finding the Fourth Proportional to 143,769.10, 198,402.14 and 83,375.55

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Solution

The fourth proportional to 143,769.10, 198,402.14 and 83,375.55 is: 115,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,769.10 : 198,402.14 = 83,375.55 : x
  2. Step 2: Convert to fraction form
    143,769.10/198,402.14 = 83,375.55/x
  3. Step 3: Cross multiply
    143,769.10x = 198,402.14 × 83,375.55
  4. Step 4: Simplify right side
    143,769.10x = 16,541,886,551.67
  5. Step 5: Solve for x
    x = 16,541,886,551.67/143,769.10
  6. Step 6: Final answer
    x = 115,058.71

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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.