Home / 103,522.20-155,129.40-53,535.60

Finding the Fourth Proportional to 103,522.20, 155,129.40 and 53,535.60

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Solution

The fourth proportional to 103,522.20, 155,129.40 and 53,535.60 is: 80,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,522.20 : 155,129.40 = 53,535.60 : x
  2. Step 2: Convert to fraction form
    103,522.20/155,129.40 = 53,535.60/x
  3. Step 3: Cross multiply
    103,522.20x = 155,129.40 × 53,535.60
  4. Step 4: Simplify right side
    103,522.20x = 8,304,945,506.64
  5. Step 5: Solve for x
    x = 8,304,945,506.64/103,522.20
  6. Step 6: Final answer
    x = 80,223.81

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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.