Home / 109,178.44-163,758.25-66,472.80

Finding the Fourth Proportional to 109,178.44, 163,758.25 and 66,472.80

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Solution

The fourth proportional to 109,178.44, 163,758.25 and 66,472.80 is: 99,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,178.44 : 163,758.25 = 66,472.80 : x
  2. Step 2: Convert to fraction form
    109,178.44/163,758.25 = 66,472.80/x
  3. Step 3: Cross multiply
    109,178.44x = 163,758.25 × 66,472.80
  4. Step 4: Simplify right side
    109,178.44x = 10,885,469,400.60
  5. Step 5: Solve for x
    x = 10,885,469,400.60/109,178.44
  6. Step 6: Final answer
    x = 99,703.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.