Home / 103,663.20-155,379.60-44,488.80

Finding the Fourth Proportional to 103,663.20, 155,379.60 and 44,488.80

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Solution

The fourth proportional to 103,663.20, 155,379.60 and 44,488.80 is: 66,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.20 : 155,379.60 = 44,488.80 : x
  2. Step 2: Convert to fraction form
    103,663.20/155,379.60 = 44,488.80/x
  3. Step 3: Cross multiply
    103,663.20x = 155,379.60 × 44,488.80
  4. Step 4: Simplify right side
    103,663.20x = 6,912,651,948.48
  5. Step 5: Solve for x
    x = 6,912,651,948.48/103,663.20
  6. Step 6: Final answer
    x = 66,683.76

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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.