Home / 141,867.29-195,769.13-78,200.08

Finding the Fourth Proportional to 141,867.29, 195,769.13 and 78,200.08

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Solution

The fourth proportional to 141,867.29, 195,769.13 and 78,200.08 is: 107,911.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,867.29 : 195,769.13 = 78,200.08 : x
  2. Step 2: Convert to fraction form
    141,867.29/195,769.13 = 78,200.08/x
  3. Step 3: Cross multiply
    141,867.29x = 195,769.13 × 78,200.08
  4. Step 4: Simplify right side
    141,867.29x = 15,309,160,747.11
  5. Step 5: Solve for x
    x = 15,309,160,747.11/141,867.29
  6. Step 6: Final answer
    x = 107,911.84

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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.