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Finding the Fourth Proportional to 117,222.64, 161,767.28 and 63,508

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Solution

The fourth proportional to 117,222.64, 161,767.28 and 63,508 is: 87,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,222.64 : 161,767.28 = 63,508 : x
  2. Step 2: Convert to fraction form
    117,222.64/161,767.28 = 63,508/x
  3. Step 3: Cross multiply
    117,222.64x = 161,767.28 × 63,508
  4. Step 4: Simplify right side
    117,222.64x = 10,273,516,418.24
  5. Step 5: Solve for x
    x = 10,273,516,418.24/117,222.64
  6. Step 6: Final answer
    x = 87,641.06

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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.