Home / 75,245.20-112,896.60-74,064.40

Finding the Fourth Proportional to 75,245.20, 112,896.60 and 74,064.40

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Solution

The fourth proportional to 75,245.20, 112,896.60 and 74,064.40 is: 111,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245.20 : 112,896.60 = 74,064.40 : x
  2. Step 2: Convert to fraction form
    75,245.20/112,896.60 = 74,064.40/x
  3. Step 3: Cross multiply
    75,245.20x = 112,896.60 × 74,064.40
  4. Step 4: Simplify right side
    75,245.20x = 8,361,618,941.04
  5. Step 5: Solve for x
    x = 8,361,618,941.04/75,245.20
  6. Step 6: Final answer
    x = 111,124.95

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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.