Home / 165,321.79-228,146.34-89,871.91

Finding the Fourth Proportional to 165,321.79, 228,146.34 and 89,871.91

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Solution

The fourth proportional to 165,321.79, 228,146.34 and 89,871.91 is: 124,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,321.79 : 228,146.34 = 89,871.91 : x
  2. Step 2: Convert to fraction form
    165,321.79/228,146.34 = 89,871.91/x
  3. Step 3: Cross multiply
    165,321.79x = 228,146.34 × 89,871.91
  4. Step 4: Simplify right side
    165,321.79x = 20,503,947,335.31
  5. Step 5: Solve for x
    x = 20,503,947,335.31/165,321.79
  6. Step 6: Final answer
    x = 124,024.47

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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.