Home / 109,239.71-163,819.89-38,142.38

Finding the Fourth Proportional to 109,239.71, 163,819.89 and 38,142.38

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Solution

The fourth proportional to 109,239.71, 163,819.89 and 38,142.38 is: 57,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,239.71 : 163,819.89 = 38,142.38 : x
  2. Step 2: Convert to fraction form
    109,239.71/163,819.89 = 38,142.38/x
  3. Step 3: Cross multiply
    109,239.71x = 163,819.89 × 38,142.38
  4. Step 4: Simplify right side
    109,239.71x = 6,248,479,676.84
  5. Step 5: Solve for x
    x = 6,248,479,676.84/109,239.71
  6. Step 6: Final answer
    x = 57,199.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.