Home / 124,977.30-172,289.25-89,105.04

Finding the Fourth Proportional to 124,977.30, 172,289.25 and 89,105.04

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Solution

The fourth proportional to 124,977.30, 172,289.25 and 89,105.04 is: 122,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,977.30 : 172,289.25 = 89,105.04 : x
  2. Step 2: Convert to fraction form
    124,977.30/172,289.25 = 89,105.04/x
  3. Step 3: Cross multiply
    124,977.30x = 172,289.25 × 89,105.04
  4. Step 4: Simplify right side
    124,977.30x = 15,351,840,512.82
  5. Step 5: Solve for x
    x = 15,351,840,512.82/124,977.30
  6. Step 6: Final answer
    x = 122,837.03

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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.