Home / 108,917.29-163,139.34-52,639.37

Finding the Fourth Proportional to 108,917.29, 163,139.34 and 52,639.37

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Solution

The fourth proportional to 108,917.29, 163,139.34 and 52,639.37 is: 78,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,917.29 : 163,139.34 = 52,639.37 : x
  2. Step 2: Convert to fraction form
    108,917.29/163,139.34 = 52,639.37/x
  3. Step 3: Cross multiply
    108,917.29x = 163,139.34 × 52,639.37
  4. Step 4: Simplify right side
    108,917.29x = 8,587,552,076.96
  5. Step 5: Solve for x
    x = 8,587,552,076.96/108,917.29
  6. Step 6: Final answer
    x = 78,844.71

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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.