Home / 165,833.28-228,849.84-90,381.84

Finding the Fourth Proportional to 165,833.28, 228,849.84 and 90,381.84

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Solution

The fourth proportional to 165,833.28, 228,849.84 and 90,381.84 is: 124,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,833.28 : 228,849.84 = 90,381.84 : x
  2. Step 2: Convert to fraction form
    165,833.28/228,849.84 = 90,381.84/x
  3. Step 3: Cross multiply
    165,833.28x = 228,849.84 × 90,381.84
  4. Step 4: Simplify right side
    165,833.28x = 20,683,869,622.91
  5. Step 5: Solve for x
    x = 20,683,869,622.91/165,833.28
  6. Step 6: Final answer
    x = 124,726.89

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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.