Home / 72,167.20-108,135.60-60,416.80

Finding the Fourth Proportional to 72,167.20, 108,135.60 and 60,416.80

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Solution

The fourth proportional to 72,167.20, 108,135.60 and 60,416.80 is: 90,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.20 : 108,135.60 = 60,416.80 : x
  2. Step 2: Convert to fraction form
    72,167.20/108,135.60 = 60,416.80/x
  3. Step 3: Cross multiply
    72,167.20x = 108,135.60 × 60,416.80
  4. Step 4: Simplify right side
    72,167.20x = 6,533,206,918.08
  5. Step 5: Solve for x
    x = 6,533,206,918.08/72,167.20
  6. Step 6: Final answer
    x = 90,528.76

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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.