Home / 120,742.56-181,115.46-36,503.40

Finding the Fourth Proportional to 120,742.56, 181,115.46 and 36,503.40

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Solution

The fourth proportional to 120,742.56, 181,115.46 and 36,503.40 is: 54,755.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,742.56 : 181,115.46 = 36,503.40 : x
  2. Step 2: Convert to fraction form
    120,742.56/181,115.46 = 36,503.40/x
  3. Step 3: Cross multiply
    120,742.56x = 181,115.46 × 36,503.40
  4. Step 4: Simplify right side
    120,742.56x = 6,611,330,082.56
  5. Step 5: Solve for x
    x = 6,611,330,082.56/120,742.56
  6. Step 6: Final answer
    x = 54,755.59

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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.