Home / 172,723.58-238,359.02-100,140.57

Finding the Fourth Proportional to 172,723.58, 238,359.02 and 100,140.57

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Solution

The fourth proportional to 172,723.58, 238,359.02 and 100,140.57 is: 138,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,723.58 : 238,359.02 = 100,140.57 : x
  2. Step 2: Convert to fraction form
    172,723.58/238,359.02 = 100,140.57/x
  3. Step 3: Cross multiply
    172,723.58x = 238,359.02 × 100,140.57
  4. Step 4: Simplify right side
    172,723.58x = 23,869,408,472.99
  5. Step 5: Solve for x
    x = 23,869,408,472.99/172,723.58
  6. Step 6: Final answer
    x = 138,194.27

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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.