Home / 103,640.20-155,524.30-41,304.20

Finding the Fourth Proportional to 103,640.20, 155,524.30 and 41,304.20

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Solution

The fourth proportional to 103,640.20, 155,524.30 and 41,304.20 is: 61,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.20 : 155,524.30 = 41,304.20 : x
  2. Step 2: Convert to fraction form
    103,640.20/155,524.30 = 41,304.20/x
  3. Step 3: Cross multiply
    103,640.20x = 155,524.30 × 41,304.20
  4. Step 4: Simplify right side
    103,640.20x = 6,423,806,792.06
  5. Step 5: Solve for x
    x = 6,423,806,792.06/103,640.20
  6. Step 6: Final answer
    x = 61,981.81

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1.5x scale

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.