Home / 80,560.16-111,128.23-74,858.26

Finding the Fourth Proportional to 80,560.16, 111,128.23 and 74,858.26

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Solution

The fourth proportional to 80,560.16, 111,128.23 and 74,858.26 is: 103,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,560.16 : 111,128.23 = 74,858.26 : x
  2. Step 2: Convert to fraction form
    80,560.16/111,128.23 = 74,858.26/x
  3. Step 3: Cross multiply
    80,560.16x = 111,128.23 × 74,858.26
  4. Step 4: Simplify right side
    80,560.16x = 8,318,865,934.68
  5. Step 5: Solve for x
    x = 8,318,865,934.68/80,560.16
  6. Step 6: Final answer
    x = 103,262.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.