Home / 121,489.21-182,246.77-51,375.61

Finding the Fourth Proportional to 121,489.21, 182,246.77 and 51,375.61

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Solution

The fourth proportional to 121,489.21, 182,246.77 and 51,375.61 is: 77,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,489.21 : 182,246.77 = 51,375.61 : x
  2. Step 2: Convert to fraction form
    121,489.21/182,246.77 = 51,375.61/x
  3. Step 3: Cross multiply
    121,489.21x = 182,246.77 × 51,375.61
  4. Step 4: Simplify right side
    121,489.21x = 9,363,038,587.88
  5. Step 5: Solve for x
    x = 9,363,038,587.88/121,489.21
  6. Step 6: Final answer
    x = 77,068.89

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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.