Home / 120,543.16-180,794.22-31,797.52

Finding the Fourth Proportional to 120,543.16, 180,794.22 and 31,797.52

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Solution

The fourth proportional to 120,543.16, 180,794.22 and 31,797.52 is: 47,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,543.16 : 180,794.22 = 31,797.52 : x
  2. Step 2: Convert to fraction form
    120,543.16/180,794.22 = 31,797.52/x
  3. Step 3: Cross multiply
    120,543.16x = 180,794.22 × 31,797.52
  4. Step 4: Simplify right side
    120,543.16x = 5,748,807,826.33
  5. Step 5: Solve for x
    x = 5,748,807,826.33/120,543.16
  6. Step 6: Final answer
    x = 47,690.87

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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.