Home / 121,829.60-182,651.78-84,289.88

Finding the Fourth Proportional to 121,829.60, 182,651.78 and 84,289.88

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Solution

The fourth proportional to 121,829.60, 182,651.78 and 84,289.88 is: 126,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,829.60 : 182,651.78 = 84,289.88 : x
  2. Step 2: Convert to fraction form
    121,829.60/182,651.78 = 84,289.88/x
  3. Step 3: Cross multiply
    121,829.60x = 182,651.78 × 84,289.88
  4. Step 4: Simplify right side
    121,829.60x = 15,395,695,915.45
  5. Step 5: Solve for x
    x = 15,395,695,915.45/121,829.60
  6. Step 6: Final answer
    x = 126,370.74

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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.