Home / 149,658.24-206,529.60-81,675.76

Finding the Fourth Proportional to 149,658.24, 206,529.60 and 81,675.76

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Solution

The fourth proportional to 149,658.24, 206,529.60 and 81,675.76 is: 112,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,658.24 : 206,529.60 = 81,675.76 : x
  2. Step 2: Convert to fraction form
    149,658.24/206,529.60 = 81,675.76/x
  3. Step 3: Cross multiply
    149,658.24x = 206,529.60 × 81,675.76
  4. Step 4: Simplify right side
    149,658.24x = 16,868,462,042.50
  5. Step 5: Solve for x
    x = 16,868,462,042.50/149,658.24
  6. Step 6: Final answer
    x = 112,713.22

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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.