Home / 171,401.27-257,267.75-82,717.20

Finding the Fourth Proportional to 171,401.27, 257,267.75 and 82,717.20

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Solution

The fourth proportional to 171,401.27, 257,267.75 and 82,717.20 is: 124,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,401.27 : 257,267.75 = 82,717.20 : x
  2. Step 2: Convert to fraction form
    171,401.27/257,267.75 = 82,717.20/x
  3. Step 3: Cross multiply
    171,401.27x = 257,267.75 × 82,717.20
  4. Step 4: Simplify right side
    171,401.27x = 21,280,467,516.71
  5. Step 5: Solve for x
    x = 21,280,467,516.71/171,401.27
  6. Step 6: Final answer
    x = 124,155.84

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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.