Home / 165,787.29-228,786.59-90,335.79

Finding the Fourth Proportional to 165,787.29, 228,786.59 and 90,335.79

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Solution

The fourth proportional to 165,787.29, 228,786.59 and 90,335.79 is: 124,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,787.29 : 228,786.59 = 90,335.79 : x
  2. Step 2: Convert to fraction form
    165,787.29/228,786.59 = 90,335.79/x
  3. Step 3: Cross multiply
    165,787.29x = 228,786.59 × 90,335.79
  4. Step 4: Simplify right side
    165,787.29x = 20,667,617,574.90
  5. Step 5: Solve for x
    x = 20,667,617,574.90/165,787.29
  6. Step 6: Final answer
    x = 124,663.46

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1.5x scale

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.