Home / 171,867.20-257,813.08-71,926.76

Finding the Fourth Proportional to 171,867.20, 257,813.08 and 71,926.76

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Solution

The fourth proportional to 171,867.20, 257,813.08 and 71,926.76 is: 107,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,867.20 : 257,813.08 = 71,926.76 : x
  2. Step 2: Convert to fraction form
    171,867.20/257,813.08 = 71,926.76/x
  3. Step 3: Cross multiply
    171,867.20x = 257,813.08 × 71,926.76
  4. Step 4: Simplify right side
    171,867.20x = 18,543,659,530.02
  5. Step 5: Solve for x
    x = 18,543,659,530.02/171,867.20
  6. Step 6: Final answer
    x = 107,895.28

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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.