Home / 106,762.18-146,906.85-103,515.70

Finding the Fourth Proportional to 106,762.18, 146,906.85 and 103,515.70

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Solution

The fourth proportional to 106,762.18, 146,906.85 and 103,515.70 is: 142,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,762.18 : 146,906.85 = 103,515.70 : x
  2. Step 2: Convert to fraction form
    106,762.18/146,906.85 = 103,515.70/x
  3. Step 3: Cross multiply
    106,762.18x = 146,906.85 × 103,515.70
  4. Step 4: Simplify right side
    106,762.18x = 15,207,165,412.55
  5. Step 5: Solve for x
    x = 15,207,165,412.55/106,762.18
  6. Step 6: Final answer
    x = 142,439.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.