Home / 121,867.52-168,170.20-67,416.44

Finding the Fourth Proportional to 121,867.52, 168,170.20 and 67,416.44

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Solution

The fourth proportional to 121,867.52, 168,170.20 and 67,416.44 is: 93,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,867.52 : 168,170.20 = 67,416.44 : x
  2. Step 2: Convert to fraction form
    121,867.52/168,170.20 = 67,416.44/x
  3. Step 3: Cross multiply
    121,867.52x = 168,170.20 × 67,416.44
  4. Step 4: Simplify right side
    121,867.52x = 11,337,436,198.09
  5. Step 5: Solve for x
    x = 11,337,436,198.09/121,867.52
  6. Step 6: Final answer
    x = 93,030.83

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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.