Home / 121,282.60-182,010.30-51,212.20

Finding the Fourth Proportional to 121,282.60, 182,010.30 and 51,212.20

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Solution

The fourth proportional to 121,282.60, 182,010.30 and 51,212.20 is: 76,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,282.60 : 182,010.30 = 51,212.20 : x
  2. Step 2: Convert to fraction form
    121,282.60/182,010.30 = 51,212.20/x
  3. Step 3: Cross multiply
    121,282.60x = 182,010.30 × 51,212.20
  4. Step 4: Simplify right side
    121,282.60x = 9,321,147,885.66
  5. Step 5: Solve for x
    x = 9,321,147,885.66/121,282.60
  6. Step 6: Final answer
    x = 76,854.78

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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.