Home / 103,626.18-155,439.27-28,746.33

Finding the Fourth Proportional to 103,626.18, 155,439.27 and 28,746.33

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Solution

The fourth proportional to 103,626.18, 155,439.27 and 28,746.33 is: 43,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.18 : 155,439.27 = 28,746.33 : x
  2. Step 2: Convert to fraction form
    103,626.18/155,439.27 = 28,746.33/x
  3. Step 3: Cross multiply
    103,626.18x = 155,439.27 × 28,746.33
  4. Step 4: Simplify right side
    103,626.18x = 4,468,307,629.45
  5. Step 5: Solve for x
    x = 4,468,307,629.45/103,626.18
  6. Step 6: Final answer
    x = 43,119.49

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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.