Home / 100,328.03-138,454.25-60,043.49

Finding the Fourth Proportional to 100,328.03, 138,454.25 and 60,043.49

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Solution

The fourth proportional to 100,328.03, 138,454.25 and 60,043.49 is: 82,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,328.03 : 138,454.25 = 60,043.49 : x
  2. Step 2: Convert to fraction form
    100,328.03/138,454.25 = 60,043.49/x
  3. Step 3: Cross multiply
    100,328.03x = 138,454.25 × 60,043.49
  4. Step 4: Simplify right side
    100,328.03x = 8,313,276,375.33
  5. Step 5: Solve for x
    x = 8,313,276,375.33/100,328.03
  6. Step 6: Final answer
    x = 82,860.95

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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.