Home / 80,559.16-111,126.85-74,857.26

Finding the Fourth Proportional to 80,559.16, 111,126.85 and 74,857.26

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Solution

The fourth proportional to 80,559.16, 111,126.85 and 74,857.26 is: 103,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,559.16 : 111,126.85 = 74,857.26 : x
  2. Step 2: Convert to fraction form
    80,559.16/111,126.85 = 74,857.26/x
  3. Step 3: Cross multiply
    80,559.16x = 111,126.85 × 74,857.26
  4. Step 4: Simplify right side
    80,559.16x = 8,318,651,503.43
  5. Step 5: Solve for x
    x = 8,318,651,503.43/80,559.16
  6. Step 6: Final answer
    x = 103,261.40

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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.