Home / 165,787.32-228,786.54-90,335.82

Finding the Fourth Proportional to 165,787.32, 228,786.54 and 90,335.82

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Solution

The fourth proportional to 165,787.32, 228,786.54 and 90,335.82 is: 124,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,787.32 : 228,786.54 = 90,335.82 : x
  2. Step 2: Convert to fraction form
    165,787.32/228,786.54 = 90,335.82/x
  3. Step 3: Cross multiply
    165,787.32x = 228,786.54 × 90,335.82
  4. Step 4: Simplify right side
    165,787.32x = 20,667,619,695.86
  5. Step 5: Solve for x
    x = 20,667,619,695.86/165,787.32
  6. Step 6: Final answer
    x = 124,663.45

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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.