Home / 103,488.30-155,232.45-36,930.60

Finding the Fourth Proportional to 103,488.30, 155,232.45 and 36,930.60

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Solution

The fourth proportional to 103,488.30, 155,232.45 and 36,930.60 is: 55,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,488.30 : 155,232.45 = 36,930.60 : x
  2. Step 2: Convert to fraction form
    103,488.30/155,232.45 = 36,930.60/x
  3. Step 3: Cross multiply
    103,488.30x = 155,232.45 × 36,930.60
  4. Step 4: Simplify right side
    103,488.30x = 5,732,827,517.97
  5. Step 5: Solve for x
    x = 5,732,827,517.97/103,488.30
  6. Step 6: Final answer
    x = 55,395.90

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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.