Home / 165,801.18-228,805.92-90,349.68

Finding the Fourth Proportional to 165,801.18, 228,805.92 and 90,349.68

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Solution

The fourth proportional to 165,801.18, 228,805.92 and 90,349.68 is: 124,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,801.18 : 228,805.92 = 90,349.68 : x
  2. Step 2: Convert to fraction form
    165,801.18/228,805.92 = 90,349.68/x
  3. Step 3: Cross multiply
    165,801.18x = 228,805.92 × 90,349.68
  4. Step 4: Simplify right side
    165,801.18x = 20,672,541,654.11
  5. Step 5: Solve for x
    x = 20,672,541,654.11/165,801.18
  6. Step 6: Final answer
    x = 124,682.72

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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.