Home / 80,117.18-120,178.56-27,526.28

Finding the Fourth Proportional to 80,117.18, 120,178.56 and 27,526.28

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Solution

The fourth proportional to 80,117.18, 120,178.56 and 27,526.28 is: 41,290.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,117.18 : 120,178.56 = 27,526.28 : x
  2. Step 2: Convert to fraction form
    80,117.18/120,178.56 = 27,526.28/x
  3. Step 3: Cross multiply
    80,117.18x = 120,178.56 × 27,526.28
  4. Step 4: Simplify right side
    80,117.18x = 3,308,068,692.56
  5. Step 5: Solve for x
    x = 3,308,068,692.56/80,117.18
  6. Step 6: Final answer
    x = 41,290.38

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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.