Home / 120,246.24-180,380.02-31,499.40

Finding the Fourth Proportional to 120,246.24, 180,380.02 and 31,499.40

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Solution

The fourth proportional to 120,246.24, 180,380.02 and 31,499.40 is: 47,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,246.24 : 180,380.02 = 31,499.40 : x
  2. Step 2: Convert to fraction form
    120,246.24/180,380.02 = 31,499.40/x
  3. Step 3: Cross multiply
    120,246.24x = 180,380.02 × 31,499.40
  4. Step 4: Simplify right side
    120,246.24x = 5,681,862,401.99
  5. Step 5: Solve for x
    x = 5,681,862,401.99/120,246.24
  6. Step 6: Final answer
    x = 47,251.89

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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.