Home / 80,153.22-111,117.27-75,887.19

Finding the Fourth Proportional to 80,153.22, 111,117.27 and 75,887.19

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Solution

The fourth proportional to 80,153.22, 111,117.27 and 75,887.19 is: 105,203.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,153.22 : 111,117.27 = 75,887.19 : x
  2. Step 2: Convert to fraction form
    80,153.22/111,117.27 = 75,887.19/x
  3. Step 3: Cross multiply
    80,153.22x = 111,117.27 × 75,887.19
  4. Step 4: Simplify right side
    80,153.22x = 8,432,377,380.77
  5. Step 5: Solve for x
    x = 8,432,377,380.77/80,153.22
  6. Step 6: Final answer
    x = 105,203.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.