Home / 149,406.27-206,177.99-81,422.84

Finding the Fourth Proportional to 149,406.27, 206,177.99 and 81,422.84

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Solution

The fourth proportional to 149,406.27, 206,177.99 and 81,422.84 is: 112,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,406.27 : 206,177.99 = 81,422.84 : x
  2. Step 2: Convert to fraction form
    149,406.27/206,177.99 = 81,422.84/x
  3. Step 3: Cross multiply
    149,406.27x = 206,177.99 × 81,422.84
  4. Step 4: Simplify right side
    149,406.27x = 16,787,596,053.29
  5. Step 5: Solve for x
    x = 16,787,596,053.29/149,406.27
  6. Step 6: Final answer
    x = 112,362.06

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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.