Home / 178,860.18-268,298.42-126,503.40

Finding the Fourth Proportional to 178,860.18, 268,298.42 and 126,503.40

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Solution

The fourth proportional to 178,860.18, 268,298.42 and 126,503.40 is: 189,760.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,860.18 : 268,298.42 = 126,503.40 : x
  2. Step 2: Convert to fraction form
    178,860.18/268,298.42 = 126,503.40/x
  3. Step 3: Cross multiply
    178,860.18x = 268,298.42 × 126,503.40
  4. Step 4: Simplify right side
    178,860.18x = 33,940,661,712.11
  5. Step 5: Solve for x
    x = 33,940,661,712.11/178,860.18
  6. Step 6: Final answer
    x = 189,760.86

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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.