Home / 165,228.28-228,017.10-89,778.04

Finding the Fourth Proportional to 165,228.28, 228,017.10 and 89,778.04

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Solution

The fourth proportional to 165,228.28, 228,017.10 and 89,778.04 is: 123,894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,228.28 : 228,017.10 = 89,778.04 : x
  2. Step 2: Convert to fraction form
    165,228.28/228,017.10 = 89,778.04/x
  3. Step 3: Cross multiply
    165,228.28x = 228,017.10 × 89,778.04
  4. Step 4: Simplify right side
    165,228.28x = 20,470,928,324.48
  5. Step 5: Solve for x
    x = 20,470,928,324.48/165,228.28
  6. Step 6: Final answer
    x = 123,894.82

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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.