Home / 112,138.20-168,441.30-94,642.20

Finding the Fourth Proportional to 112,138.20, 168,441.30 and 94,642.20

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Solution

The fourth proportional to 112,138.20, 168,441.30 and 94,642.20 is: 142,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,138.20 : 168,441.30 = 94,642.20 : x
  2. Step 2: Convert to fraction form
    112,138.20/168,441.30 = 94,642.20/x
  3. Step 3: Cross multiply
    112,138.20x = 168,441.30 × 94,642.20
  4. Step 4: Simplify right side
    112,138.20x = 15,941,655,202.86
  5. Step 5: Solve for x
    x = 15,941,655,202.86/112,138.20
  6. Step 6: Final answer
    x = 142,160.79

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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.