Home / 115,908.30-173,862.45-71,621.55

Finding the Fourth Proportional to 115,908.30, 173,862.45 and 71,621.55

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Solution

The fourth proportional to 115,908.30, 173,862.45 and 71,621.55 is: 107,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,908.30 : 173,862.45 = 71,621.55 : x
  2. Step 2: Convert to fraction form
    115,908.30/173,862.45 = 71,621.55/x
  3. Step 3: Cross multiply
    115,908.30x = 173,862.45 × 71,621.55
  4. Step 4: Simplify right side
    115,908.30x = 12,452,298,155.80
  5. Step 5: Solve for x
    x = 12,452,298,155.80/115,908.30
  6. Step 6: Final answer
    x = 107,432.33

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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.