Home / 208,678.41-313,022.88-66,521.52

Finding the Fourth Proportional to 208,678.41, 313,022.88 and 66,521.52

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Solution

The fourth proportional to 208,678.41, 313,022.88 and 66,521.52 is: 99,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,678.41 : 313,022.88 = 66,521.52 : x
  2. Step 2: Convert to fraction form
    208,678.41/313,022.88 = 66,521.52/x
  3. Step 3: Cross multiply
    208,678.41x = 313,022.88 × 66,521.52
  4. Step 4: Simplify right side
    208,678.41x = 20,822,757,772.38
  5. Step 5: Solve for x
    x = 20,822,757,772.38/208,678.41
  6. Step 6: Final answer
    x = 99,783.96

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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.