Home / 272,088.76-408,026.40-103,519.60

Finding the Fourth Proportional to 272,088.76, 408,026.40 and 103,519.60

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Solution

The fourth proportional to 272,088.76, 408,026.40 and 103,519.60 is: 155,238.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,088.76 : 408,026.40 = 103,519.60 : x
  2. Step 2: Convert to fraction form
    272,088.76/408,026.40 = 103,519.60/x
  3. Step 3: Cross multiply
    272,088.76x = 408,026.40 × 103,519.60
  4. Step 4: Simplify right side
    272,088.76x = 42,238,729,717.44
  5. Step 5: Solve for x
    x = 42,238,729,717.44/272,088.76
  6. Step 6: Final answer
    x = 155,238.79

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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.