Home / 272,415.76-408,741.17-103,986.66

Finding the Fourth Proportional to 272,415.76, 408,741.17 and 103,986.66

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Solution

The fourth proportional to 272,415.76, 408,741.17 and 103,986.66 is: 156,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,415.76 : 408,741.17 = 103,986.66 : x
  2. Step 2: Convert to fraction form
    272,415.76/408,741.17 = 103,986.66/x
  3. Step 3: Cross multiply
    272,415.76x = 408,741.17 × 103,986.66
  4. Step 4: Simplify right side
    272,415.76x = 42,503,629,072.79
  5. Step 5: Solve for x
    x = 42,503,629,072.79/272,415.76
  6. Step 6: Final answer
    x = 156,024.85

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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.