Home / 238,661.39-358,147.83-89,021.38

Finding the Fourth Proportional to 238,661.39, 358,147.83 and 89,021.38

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Solution

The fourth proportional to 238,661.39, 358,147.83 and 89,021.38 is: 133,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,661.39 : 358,147.83 = 89,021.38 : x
  2. Step 2: Convert to fraction form
    238,661.39/358,147.83 = 89,021.38/x
  3. Step 3: Cross multiply
    238,661.39x = 358,147.83 × 89,021.38
  4. Step 4: Simplify right side
    238,661.39x = 31,882,813,679.85
  5. Step 5: Solve for x
    x = 31,882,813,679.85/238,661.39
  6. Step 6: Final answer
    x = 133,590.16

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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.