Home / 103,440.20-155,160.30-44,281.85

Finding the Fourth Proportional to 103,440.20, 155,160.30 and 44,281.85

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Solution

The fourth proportional to 103,440.20, 155,160.30 and 44,281.85 is: 66,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,440.20 : 155,160.30 = 44,281.85 : x
  2. Step 2: Convert to fraction form
    103,440.20/155,160.30 = 44,281.85/x
  3. Step 3: Cross multiply
    103,440.20x = 155,160.30 × 44,281.85
  4. Step 4: Simplify right side
    103,440.20x = 6,870,785,130.56
  5. Step 5: Solve for x
    x = 6,870,785,130.56/103,440.20
  6. Step 6: Final answer
    x = 66,422.78

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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.