Home / 149,521.86-206,340.01-81,538.97

Finding the Fourth Proportional to 149,521.86, 206,340.01 and 81,538.97

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Solution

The fourth proportional to 149,521.86, 206,340.01 and 81,538.97 is: 112,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,521.86 : 206,340.01 = 81,538.97 : x
  2. Step 2: Convert to fraction form
    149,521.86/206,340.01 = 81,538.97/x
  3. Step 3: Cross multiply
    149,521.86x = 206,340.01 × 81,538.97
  4. Step 4: Simplify right side
    149,521.86x = 16,824,750,649.64
  5. Step 5: Solve for x
    x = 16,824,750,649.64/149,521.86
  6. Step 6: Final answer
    x = 112,523.68

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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.