Home / 172,908.72-238,634.40-96,439.86

Finding the Fourth Proportional to 172,908.72, 238,634.40 and 96,439.86

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Solution

The fourth proportional to 172,908.72, 238,634.40 and 96,439.86 is: 133,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,908.72 : 238,634.40 = 96,439.86 : x
  2. Step 2: Convert to fraction form
    172,908.72/238,634.40 = 96,439.86/x
  3. Step 3: Cross multiply
    172,908.72x = 238,634.40 × 96,439.86
  4. Step 4: Simplify right side
    172,908.72x = 23,013,868,127.18
  5. Step 5: Solve for x
    x = 23,013,868,127.18/172,908.72
  6. Step 6: Final answer
    x = 133,098.37

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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.