Home / 272,120.10-408,184.26-103,649.76

Finding the Fourth Proportional to 272,120.10, 408,184.26 and 103,649.76

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Solution

The fourth proportional to 272,120.10, 408,184.26 and 103,649.76 is: 155,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,120.10 : 408,184.26 = 103,649.76 : x
  2. Step 2: Convert to fraction form
    272,120.10/408,184.26 = 103,649.76/x
  3. Step 3: Cross multiply
    272,120.10x = 408,184.26 × 103,649.76
  4. Step 4: Simplify right side
    272,120.10x = 42,308,200,584.78
  5. Step 5: Solve for x
    x = 42,308,200,584.78/272,120.10
  6. Step 6: Final answer
    x = 155,476.21

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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.