Home / 149,521.14-206,344.13-81,541.82

Finding the Fourth Proportional to 149,521.14, 206,344.13 and 81,541.82

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Solution

The fourth proportional to 149,521.14, 206,344.13 and 81,541.82 is: 112,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,521.14 : 206,344.13 = 81,541.82 : x
  2. Step 2: Convert to fraction form
    149,521.14/206,344.13 = 81,541.82/x
  3. Step 3: Cross multiply
    149,521.14x = 206,344.13 × 81,541.82
  4. Step 4: Simplify right side
    149,521.14x = 16,825,674,467.09
  5. Step 5: Solve for x
    x = 16,825,674,467.09/149,521.14
  6. Step 6: Final answer
    x = 112,530.41

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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.