Home / 141,999.55-195,959.37-78,337.35

Finding the Fourth Proportional to 141,999.55, 195,959.37 and 78,337.35

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Solution

The fourth proportional to 141,999.55, 195,959.37 and 78,337.35 is: 108,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,999.55 : 195,959.37 = 78,337.35 : x
  2. Step 2: Convert to fraction form
    141,999.55/195,959.37 = 78,337.35/x
  3. Step 3: Cross multiply
    141,999.55x = 195,959.37 × 78,337.35
  4. Step 4: Simplify right side
    141,999.55x = 15,350,937,753.47
  5. Step 5: Solve for x
    x = 15,350,937,753.47/141,999.55
  6. Step 6: Final answer
    x = 108,105.54

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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.