Home / 165,587.62-228,515.37-90,139.30

Finding the Fourth Proportional to 165,587.62, 228,515.37 and 90,139.30

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Solution

The fourth proportional to 165,587.62, 228,515.37 and 90,139.30 is: 124,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,587.62 : 228,515.37 = 90,139.30 : x
  2. Step 2: Convert to fraction form
    165,587.62/228,515.37 = 90,139.30/x
  3. Step 3: Cross multiply
    165,587.62x = 228,515.37 × 90,139.30
  4. Step 4: Simplify right side
    165,587.62x = 20,598,215,491.04
  5. Step 5: Solve for x
    x = 20,598,215,491.04/165,587.62
  6. Step 6: Final answer
    x = 124,394.66

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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.