Home / 188,036.91-259,497.68-103,156.47

Finding the Fourth Proportional to 188,036.91, 259,497.68 and 103,156.47

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Solution

The fourth proportional to 188,036.91, 259,497.68 and 103,156.47 is: 142,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,036.91 : 259,497.68 = 103,156.47 : x
  2. Step 2: Convert to fraction form
    188,036.91/259,497.68 = 103,156.47/x
  3. Step 3: Cross multiply
    188,036.91x = 259,497.68 × 103,156.47
  4. Step 4: Simplify right side
    188,036.91x = 26,768,864,126.21
  5. Step 5: Solve for x
    x = 26,768,864,126.21/188,036.91
  6. Step 6: Final answer
    x = 142,359.63

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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.