Home / 165,731.28-228,707.98-90,279.80

Finding the Fourth Proportional to 165,731.28, 228,707.98 and 90,279.80

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Solution

The fourth proportional to 165,731.28, 228,707.98 and 90,279.80 is: 124,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,731.28 : 228,707.98 = 90,279.80 : x
  2. Step 2: Convert to fraction form
    165,731.28/228,707.98 = 90,279.80/x
  3. Step 3: Cross multiply
    165,731.28x = 228,707.98 × 90,279.80
  4. Step 4: Simplify right side
    165,731.28x = 20,647,710,692.80
  5. Step 5: Solve for x
    x = 20,647,710,692.80/165,731.28
  6. Step 6: Final answer
    x = 124,585.48

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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.