Home / 141,861.29-195,768.54-78,200.15

Finding the Fourth Proportional to 141,861.29, 195,768.54 and 78,200.15

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Solution

The fourth proportional to 141,861.29, 195,768.54 and 78,200.15 is: 107,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,861.29 : 195,768.54 = 78,200.15 : x
  2. Step 2: Convert to fraction form
    141,861.29/195,768.54 = 78,200.15/x
  3. Step 3: Cross multiply
    141,861.29x = 195,768.54 × 78,200.15
  4. Step 4: Simplify right side
    141,861.29x = 15,309,129,193.28
  5. Step 5: Solve for x
    x = 15,309,129,193.28/141,861.29
  6. Step 6: Final answer
    x = 107,916.18

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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.