Home / 149,044.32-205,682.04-81,061.92

Finding the Fourth Proportional to 149,044.32, 205,682.04 and 81,061.92

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Solution

The fourth proportional to 149,044.32, 205,682.04 and 81,061.92 is: 111,865.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,044.32 : 205,682.04 = 81,061.92 : x
  2. Step 2: Convert to fraction form
    149,044.32/205,682.04 = 81,061.92/x
  3. Step 3: Cross multiply
    149,044.32x = 205,682.04 × 81,061.92
  4. Step 4: Simplify right side
    149,044.32x = 16,672,981,071.92
  5. Step 5: Solve for x
    x = 16,672,981,071.92/149,044.32
  6. Step 6: Final answer
    x = 111,865.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.