Home / 115,540.04-159,437.76-67,137.68

Finding the Fourth Proportional to 115,540.04, 159,437.76 and 67,137.68

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Solution

The fourth proportional to 115,540.04, 159,437.76 and 67,137.68 is: 92,645.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,540.04 : 159,437.76 = 67,137.68 : x
  2. Step 2: Convert to fraction form
    115,540.04/159,437.76 = 67,137.68/x
  3. Step 3: Cross multiply
    115,540.04x = 159,437.76 × 67,137.68
  4. Step 4: Simplify right side
    115,540.04x = 10,704,281,310.80
  5. Step 5: Solve for x
    x = 10,704,281,310.80/115,540.04
  6. Step 6: Final answer
    x = 92,645.64

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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.