Home / 178,735.40-268,102.88-45,615.66

Finding the Fourth Proportional to 178,735.40, 268,102.88 and 45,615.66

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Solution

The fourth proportional to 178,735.40, 268,102.88 and 45,615.66 is: 68,423.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,735.40 : 268,102.88 = 45,615.66 : x
  2. Step 2: Convert to fraction form
    178,735.40/268,102.88 = 45,615.66/x
  3. Step 3: Cross multiply
    178,735.40x = 268,102.88 × 45,615.66
  4. Step 4: Simplify right side
    178,735.40x = 12,229,689,819.10
  5. Step 5: Solve for x
    x = 12,229,689,819.10/178,735.40
  6. Step 6: Final answer
    x = 68,423.43

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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.