Home / 342,154.20-513,260-126,071.76

Finding the Fourth Proportional to 342,154.20, 513,260 and 126,071.76

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Solution

The fourth proportional to 342,154.20, 513,260 and 126,071.76 is: 189,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,154.20 : 513,260 = 126,071.76 : x
  2. Step 2: Convert to fraction form
    342,154.20/513,260 = 126,071.76/x
  3. Step 3: Cross multiply
    342,154.20x = 513,260 × 126,071.76
  4. Step 4: Simplify right side
    342,154.20x = 64,707,591,537.60
  5. Step 5: Solve for x
    x = 64,707,591,537.60/342,154.20
  6. Step 6: Final answer
    x = 189,118.21

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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.