Home / 115,444.80-173,167.20-71,121.60

Finding the Fourth Proportional to 115,444.80, 173,167.20 and 71,121.60

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Solution

The fourth proportional to 115,444.80, 173,167.20 and 71,121.60 is: 106,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,444.80 : 173,167.20 = 71,121.60 : x
  2. Step 2: Convert to fraction form
    115,444.80/173,167.20 = 71,121.60/x
  3. Step 3: Cross multiply
    115,444.80x = 173,167.20 × 71,121.60
  4. Step 4: Simplify right side
    115,444.80x = 12,315,928,331.52
  5. Step 5: Solve for x
    x = 12,315,928,331.52/115,444.80
  6. Step 6: Final answer
    x = 106,682.40

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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.