Home / 108,120.20-149,203.46-60,378.04

Finding the Fourth Proportional to 108,120.20, 149,203.46 and 60,378.04

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Solution

The fourth proportional to 108,120.20, 149,203.46 and 60,378.04 is: 83,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,120.20 : 149,203.46 = 60,378.04 : x
  2. Step 2: Convert to fraction form
    108,120.20/149,203.46 = 60,378.04/x
  3. Step 3: Cross multiply
    108,120.20x = 149,203.46 × 60,378.04
  4. Step 4: Simplify right side
    108,120.20x = 9,008,612,476.02
  5. Step 5: Solve for x
    x = 9,008,612,476.02/108,120.20
  6. Step 6: Final answer
    x = 83,320.35

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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.