Home / 120,372.55-180,561.26-45,528.15

Finding the Fourth Proportional to 120,372.55, 180,561.26 and 45,528.15

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Solution

The fourth proportional to 120,372.55, 180,561.26 and 45,528.15 is: 68,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372.55 : 180,561.26 = 45,528.15 : x
  2. Step 2: Convert to fraction form
    120,372.55/180,561.26 = 45,528.15/x
  3. Step 3: Cross multiply
    120,372.55x = 180,561.26 × 45,528.15
  4. Step 4: Simplify right side
    120,372.55x = 8,220,620,129.47
  5. Step 5: Solve for x
    x = 8,220,620,129.47/120,372.55
  6. Step 6: Final answer
    x = 68,293.15

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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.