Home / 103,626.12-155,439.20-28,746.27

Finding the Fourth Proportional to 103,626.12, 155,439.20 and 28,746.27

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Solution

The fourth proportional to 103,626.12, 155,439.20 and 28,746.27 is: 43,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.12 : 155,439.20 = 28,746.27 : x
  2. Step 2: Convert to fraction form
    103,626.12/155,439.20 = 28,746.27/x
  3. Step 3: Cross multiply
    103,626.12x = 155,439.20 × 28,746.27
  4. Step 4: Simplify right side
    103,626.12x = 4,468,297,211.78
  5. Step 5: Solve for x
    x = 4,468,297,211.78/103,626.12
  6. Step 6: Final answer
    x = 43,119.41

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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.