Home / 178,771.86-268,071.12-103,913.55

Finding the Fourth Proportional to 178,771.86, 268,071.12 and 103,913.55

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Solution

The fourth proportional to 178,771.86, 268,071.12 and 103,913.55 is: 155,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,771.86 : 268,071.12 = 103,913.55 : x
  2. Step 2: Convert to fraction form
    178,771.86/268,071.12 = 103,913.55/x
  3. Step 3: Cross multiply
    178,771.86x = 268,071.12 × 103,913.55
  4. Step 4: Simplify right side
    178,771.86x = 27,856,221,731.68
  5. Step 5: Solve for x
    x = 27,856,221,731.68/178,771.86
  6. Step 6: Final answer
    x = 155,819.95

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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.