Home / 172,942.55-238,569.94-140,713.20

Finding the Fourth Proportional to 172,942.55, 238,569.94 and 140,713.20

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Solution

The fourth proportional to 172,942.55, 238,569.94 and 140,713.20 is: 194,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,942.55 : 238,569.94 = 140,713.20 : x
  2. Step 2: Convert to fraction form
    172,942.55/238,569.94 = 140,713.20/x
  3. Step 3: Cross multiply
    172,942.55x = 238,569.94 × 140,713.20
  4. Step 4: Simplify right side
    172,942.55x = 33,569,939,329.43
  5. Step 5: Solve for x
    x = 33,569,939,329.43/172,942.55
  6. Step 6: Final answer
    x = 194,110.36

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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.