Home / 117,331.21-161,917.47-63,616.29

Finding the Fourth Proportional to 117,331.21, 161,917.47 and 63,616.29

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Solution

The fourth proportional to 117,331.21, 161,917.47 and 63,616.29 is: 87,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,331.21 : 161,917.47 = 63,616.29 : x
  2. Step 2: Convert to fraction form
    117,331.21/161,917.47 = 63,616.29/x
  3. Step 3: Cross multiply
    117,331.21x = 161,917.47 × 63,616.29
  4. Step 4: Simplify right side
    117,331.21x = 10,300,588,727.59
  5. Step 5: Solve for x
    x = 10,300,588,727.59/117,331.21
  6. Step 6: Final answer
    x = 87,790.70

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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.