Home / 109,747.38-164,668.51-38,720.71

Finding the Fourth Proportional to 109,747.38, 164,668.51 and 38,720.71

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Solution

The fourth proportional to 109,747.38, 164,668.51 and 38,720.71 is: 58,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.38 : 164,668.51 = 38,720.71 : x
  2. Step 2: Convert to fraction form
    109,747.38/164,668.51 = 38,720.71/x
  3. Step 3: Cross multiply
    109,747.38x = 164,668.51 × 38,720.71
  4. Step 4: Simplify right side
    109,747.38x = 6,376,081,621.84
  5. Step 5: Solve for x
    x = 6,376,081,621.84/109,747.38
  6. Step 6: Final answer
    x = 58,097.80

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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.