Home / 75,221.87-112,160.30-73,155.15

Finding the Fourth Proportional to 75,221.87, 112,160.30 and 73,155.15

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Solution

The fourth proportional to 75,221.87, 112,160.30 and 73,155.15 is: 109,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,221.87 : 112,160.30 = 73,155.15 : x
  2. Step 2: Convert to fraction form
    75,221.87/112,160.30 = 73,155.15/x
  3. Step 3: Cross multiply
    75,221.87x = 112,160.30 × 73,155.15
  4. Step 4: Simplify right side
    75,221.87x = 8,205,103,204.77
  5. Step 5: Solve for x
    x = 8,205,103,204.77/75,221.87
  6. Step 6: Final answer
    x = 109,078.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.