Home / 178,819.20-268,228.80-119,721.60

Finding the Fourth Proportional to 178,819.20, 268,228.80 and 119,721.60

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Solution

The fourth proportional to 178,819.20, 268,228.80 and 119,721.60 is: 179,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,819.20 : 268,228.80 = 119,721.60 : x
  2. Step 2: Convert to fraction form
    178,819.20/268,228.80 = 119,721.60/x
  3. Step 3: Cross multiply
    178,819.20x = 268,228.80 × 119,721.60
  4. Step 4: Simplify right side
    178,819.20x = 32,112,781,102.08
  5. Step 5: Solve for x
    x = 32,112,781,102.08/178,819.20
  6. Step 6: Final answer
    x = 179,582.40

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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.