Home / 172,962.81-238,705.11-108,442.26

Finding the Fourth Proportional to 172,962.81, 238,705.11 and 108,442.26

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Solution

The fourth proportional to 172,962.81, 238,705.11 and 108,442.26 is: 149,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,962.81 : 238,705.11 = 108,442.26 : x
  2. Step 2: Convert to fraction form
    172,962.81/238,705.11 = 108,442.26/x
  3. Step 3: Cross multiply
    172,962.81x = 238,705.11 × 108,442.26
  4. Step 4: Simplify right side
    172,962.81x = 25,885,721,601.95
  5. Step 5: Solve for x
    x = 25,885,721,601.95/172,962.81
  6. Step 6: Final answer
    x = 149,660.62

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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.