Home / 272,442.46-408,699.39-90,012.66

Finding the Fourth Proportional to 272,442.46, 408,699.39 and 90,012.66

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Solution

The fourth proportional to 272,442.46, 408,699.39 and 90,012.66 is: 135,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,442.46 : 408,699.39 = 90,012.66 : x
  2. Step 2: Convert to fraction form
    272,442.46/408,699.39 = 90,012.66/x
  3. Step 3: Cross multiply
    272,442.46x = 408,699.39 × 90,012.66
  4. Step 4: Simplify right side
    272,442.46x = 36,788,119,234.28
  5. Step 5: Solve for x
    x = 36,788,119,234.28/272,442.46
  6. Step 6: Final answer
    x = 135,030.78

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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.