Home / 121,284.60-182,013.30-51,214.20

Finding the Fourth Proportional to 121,284.60, 182,013.30 and 51,214.20

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Solution

The fourth proportional to 121,284.60, 182,013.30 and 51,214.20 is: 76,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.60 : 182,013.30 = 51,214.20 : x
  2. Step 2: Convert to fraction form
    121,284.60/182,013.30 = 51,214.20/x
  3. Step 3: Cross multiply
    121,284.60x = 182,013.30 × 51,214.20
  4. Step 4: Simplify right side
    121,284.60x = 9,321,665,548.86
  5. Step 5: Solve for x
    x = 9,321,665,548.86/121,284.60
  6. Step 6: Final answer
    x = 76,857.78

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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.