Home / 181,392.72-272,181.24-81,532.80

Finding the Fourth Proportional to 181,392.72, 272,181.24 and 81,532.80

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Solution

The fourth proportional to 181,392.72, 272,181.24 and 81,532.80 is: 122,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,392.72 : 272,181.24 = 81,532.80 : x
  2. Step 2: Convert to fraction form
    181,392.72/272,181.24 = 81,532.80/x
  3. Step 3: Cross multiply
    181,392.72x = 272,181.24 × 81,532.80
  4. Step 4: Simplify right side
    181,392.72x = 22,191,698,604.67
  5. Step 5: Solve for x
    x = 22,191,698,604.67/181,392.72
  6. Step 6: Final answer
    x = 122,340.62

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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.