Home / 170,388.19-235,175.78-105,906.13

Finding the Fourth Proportional to 170,388.19, 235,175.78 and 105,906.13

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Solution

The fourth proportional to 170,388.19, 235,175.78 and 105,906.13 is: 146,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,388.19 : 235,175.78 = 105,906.13 : x
  2. Step 2: Convert to fraction form
    170,388.19/235,175.78 = 105,906.13/x
  3. Step 3: Cross multiply
    170,388.19x = 235,175.78 × 105,906.13
  4. Step 4: Simplify right side
    170,388.19x = 24,906,556,729.53
  5. Step 5: Solve for x
    x = 24,906,556,729.53/170,388.19
  6. Step 6: Final answer
    x = 146,175.37

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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.