Home / 120,479.16-180,659.50-49,382.52

Finding the Fourth Proportional to 120,479.16, 180,659.50 and 49,382.52

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Solution

The fourth proportional to 120,479.16, 180,659.50 and 49,382.52 is: 74,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,479.16 : 180,659.50 = 49,382.52 : x
  2. Step 2: Convert to fraction form
    120,479.16/180,659.50 = 49,382.52/x
  3. Step 3: Cross multiply
    120,479.16x = 180,659.50 × 49,382.52
  4. Step 4: Simplify right side
    120,479.16x = 8,921,421,741.92
  5. Step 5: Solve for x
    x = 8,921,421,741.92/120,479.16
  6. Step 6: Final answer
    x = 74,049.50

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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.