Home / 149,772.98-206,679.01-81,776.85

Finding the Fourth Proportional to 149,772.98, 206,679.01 and 81,776.85

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Solution

The fourth proportional to 149,772.98, 206,679.01 and 81,776.85 is: 112,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,772.98 : 206,679.01 = 81,776.85 : x
  2. Step 2: Convert to fraction form
    149,772.98/206,679.01 = 81,776.85/x
  3. Step 3: Cross multiply
    149,772.98x = 206,679.01 × 81,776.85
  4. Step 4: Simplify right side
    149,772.98x = 16,901,558,711.17
  5. Step 5: Solve for x
    x = 16,901,558,711.17/149,772.98
  6. Step 6: Final answer
    x = 112,847.85

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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.