Home / 124,763.78-172,193.46-79,461.30

Finding the Fourth Proportional to 124,763.78, 172,193.46 and 79,461.30

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Solution

The fourth proportional to 124,763.78, 172,193.46 and 79,461.30 is: 109,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,763.78 : 172,193.46 = 79,461.30 : x
  2. Step 2: Convert to fraction form
    124,763.78/172,193.46 = 79,461.30/x
  3. Step 3: Cross multiply
    124,763.78x = 172,193.46 × 79,461.30
  4. Step 4: Simplify right side
    124,763.78x = 13,682,716,183.10
  5. Step 5: Solve for x
    x = 13,682,716,183.10/124,763.78
  6. Step 6: Final answer
    x = 109,668.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.