Home / 125,091.24-172,610.10-99,662.10

Finding the Fourth Proportional to 125,091.24, 172,610.10 and 99,662.10

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Solution

The fourth proportional to 125,091.24, 172,610.10 and 99,662.10 is: 137,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,091.24 : 172,610.10 = 99,662.10 : x
  2. Step 2: Convert to fraction form
    125,091.24/172,610.10 = 99,662.10/x
  3. Step 3: Cross multiply
    125,091.24x = 172,610.10 × 99,662.10
  4. Step 4: Simplify right side
    125,091.24x = 17,202,685,047.21
  5. Step 5: Solve for x
    x = 17,202,685,047.21/125,091.24
  6. Step 6: Final answer
    x = 137,521.10

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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.