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Finding the Fourth Proportional to 181,572.10, 272,260.95 and 76,272.10

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Solution

The fourth proportional to 181,572.10, 272,260.95 and 76,272.10 is: 114,367.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,572.10 : 272,260.95 = 76,272.10 : x
  2. Step 2: Convert to fraction form
    181,572.10/272,260.95 = 76,272.10/x
  3. Step 3: Cross multiply
    181,572.10x = 272,260.95 × 76,272.10
  4. Step 4: Simplify right side
    181,572.10x = 20,765,914,404.50
  5. Step 5: Solve for x
    x = 20,765,914,404.50/181,572.10
  6. Step 6: Final answer
    x = 114,367.32

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1.5x scale

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.