Home / 109,177.44-163,756.75-66,471.80

Finding the Fourth Proportional to 109,177.44, 163,756.75 and 66,471.80

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Solution

The fourth proportional to 109,177.44, 163,756.75 and 66,471.80 is: 99,701.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,177.44 : 163,756.75 = 66,471.80 : x
  2. Step 2: Convert to fraction form
    109,177.44/163,756.75 = 66,471.80/x
  3. Step 3: Cross multiply
    109,177.44x = 163,756.75 × 66,471.80
  4. Step 4: Simplify right side
    109,177.44x = 10,885,205,934.65
  5. Step 5: Solve for x
    x = 10,885,205,934.65/109,177.44
  6. Step 6: Final answer
    x = 99,701.97

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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.