Home / 121,912.12-182,876.38-47,032.88

Finding the Fourth Proportional to 121,912.12, 182,876.38 and 47,032.88

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Solution

The fourth proportional to 121,912.12, 182,876.38 and 47,032.88 is: 70,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,912.12 : 182,876.38 = 47,032.88 : x
  2. Step 2: Convert to fraction form
    121,912.12/182,876.38 = 47,032.88/x
  3. Step 3: Cross multiply
    121,912.12x = 182,876.38 × 47,032.88
  4. Step 4: Simplify right side
    121,912.12x = 8,601,202,835.37
  5. Step 5: Solve for x
    x = 8,601,202,835.37/121,912.12
  6. Step 6: Final answer
    x = 70,552.48

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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.