Home / 165,230.28-228,019.86-89,780.04

Finding the Fourth Proportional to 165,230.28, 228,019.86 and 89,780.04

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Solution

The fourth proportional to 165,230.28, 228,019.86 and 89,780.04 is: 123,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,230.28 : 228,019.86 = 89,780.04 : x
  2. Step 2: Convert to fraction form
    165,230.28/228,019.86 = 89,780.04/x
  3. Step 3: Cross multiply
    165,230.28x = 228,019.86 × 89,780.04
  4. Step 4: Simplify right side
    165,230.28x = 20,471,632,151.59
  5. Step 5: Solve for x
    x = 20,471,632,151.59/165,230.28
  6. Step 6: Final answer
    x = 123,897.58

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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.