Home / 101,734.19-140,364.55-80,157.05

Finding the Fourth Proportional to 101,734.19, 140,364.55 and 80,157.05

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Solution

The fourth proportional to 101,734.19, 140,364.55 and 80,157.05 is: 110,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,734.19 : 140,364.55 = 80,157.05 : x
  2. Step 2: Convert to fraction form
    101,734.19/140,364.55 = 80,157.05/x
  3. Step 3: Cross multiply
    101,734.19x = 140,364.55 × 80,157.05
  4. Step 4: Simplify right side
    101,734.19x = 11,251,207,149.97
  5. Step 5: Solve for x
    x = 11,251,207,149.97/101,734.19
  6. Step 6: Final answer
    x = 110,594.16

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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.