Home / 147,445.20-220,924.60-85,006.80

Finding the Fourth Proportional to 147,445.20, 220,924.60 and 85,006.80

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Solution

The fourth proportional to 147,445.20, 220,924.60 and 85,006.80 is: 127,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,445.20 : 220,924.60 = 85,006.80 : x
  2. Step 2: Convert to fraction form
    147,445.20/220,924.60 = 85,006.80/x
  3. Step 3: Cross multiply
    147,445.20x = 220,924.60 × 85,006.80
  4. Step 4: Simplify right side
    147,445.20x = 18,780,093,287.28
  5. Step 5: Solve for x
    x = 18,780,093,287.28/147,445.20
  6. Step 6: Final answer
    x = 127,369.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.