Home / 171,427.28-257,181.98-71,531.91

Finding the Fourth Proportional to 171,427.28, 257,181.98 and 71,531.91

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Solution

The fourth proportional to 171,427.28, 257,181.98 and 71,531.91 is: 107,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,427.28 : 257,181.98 = 71,531.91 : x
  2. Step 2: Convert to fraction form
    171,427.28/257,181.98 = 71,531.91/x
  3. Step 3: Cross multiply
    171,427.28x = 257,181.98 × 71,531.91
  4. Step 4: Simplify right side
    171,427.28x = 18,396,718,246.98
  5. Step 5: Solve for x
    x = 18,396,718,246.98/171,427.28
  6. Step 6: Final answer
    x = 107,315.00

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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.