Home / 109,057.60-163,586.40-67,067.20

Finding the Fourth Proportional to 109,057.60, 163,586.40 and 67,067.20

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Solution

The fourth proportional to 109,057.60, 163,586.40 and 67,067.20 is: 100,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,057.60 : 163,586.40 = 67,067.20 : x
  2. Step 2: Convert to fraction form
    109,057.60/163,586.40 = 67,067.20/x
  3. Step 3: Cross multiply
    109,057.60x = 163,586.40 × 67,067.20
  4. Step 4: Simplify right side
    109,057.60x = 10,971,281,806.08
  5. Step 5: Solve for x
    x = 10,971,281,806.08/109,057.60
  6. Step 6: Final answer
    x = 100,600.80

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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.