Home / 117,376.69-161,979.87-63,661.49

Finding the Fourth Proportional to 117,376.69, 161,979.87 and 63,661.49

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Solution

The fourth proportional to 117,376.69, 161,979.87 and 63,661.49 is: 87,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,376.69 : 161,979.87 = 63,661.49 : x
  2. Step 2: Convert to fraction form
    117,376.69/161,979.87 = 63,661.49/x
  3. Step 3: Cross multiply
    117,376.69x = 161,979.87 × 63,661.49
  4. Step 4: Simplify right side
    117,376.69x = 10,311,879,874.21
  5. Step 5: Solve for x
    x = 10,311,879,874.21/117,376.69
  6. Step 6: Final answer
    x = 87,852.88

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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.