Home / 121,298.20-182,012.10-54,748.60

Finding the Fourth Proportional to 121,298.20, 182,012.10 and 54,748.60

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Solution

The fourth proportional to 121,298.20, 182,012.10 and 54,748.60 is: 82,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,298.20 : 182,012.10 = 54,748.60 : x
  2. Step 2: Convert to fraction form
    121,298.20/182,012.10 = 54,748.60/x
  3. Step 3: Cross multiply
    121,298.20x = 182,012.10 × 54,748.60
  4. Step 4: Simplify right side
    121,298.20x = 9,964,907,658.06
  5. Step 5: Solve for x
    x = 9,964,907,658.06/121,298.20
  6. Step 6: Final answer
    x = 82,152.15

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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.