Home / 120,179.12-180,254.91-31,441.19

Finding the Fourth Proportional to 120,179.12, 180,254.91 and 31,441.19

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Solution

The fourth proportional to 120,179.12, 180,254.91 and 31,441.19 is: 47,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,179.12 : 180,254.91 = 31,441.19 : x
  2. Step 2: Convert to fraction form
    120,179.12/180,254.91 = 31,441.19/x
  3. Step 3: Cross multiply
    120,179.12x = 180,254.91 × 31,441.19
  4. Step 4: Simplify right side
    120,179.12x = 5,667,429,402.98
  5. Step 5: Solve for x
    x = 5,667,429,402.98/120,179.12
  6. Step 6: Final answer
    x = 47,158.19

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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.