Home / 165,616.40-228,549.24-90,164.72

Finding the Fourth Proportional to 165,616.40, 228,549.24 and 90,164.72

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Solution

The fourth proportional to 165,616.40, 228,549.24 and 90,164.72 is: 124,426.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,616.40 : 228,549.24 = 90,164.72 : x
  2. Step 2: Convert to fraction form
    165,616.40/228,549.24 = 90,164.72/x
  3. Step 3: Cross multiply
    165,616.40x = 228,549.24 × 90,164.72
  4. Step 4: Simplify right side
    165,616.40x = 20,607,078,230.81
  5. Step 5: Solve for x
    x = 20,607,078,230.81/165,616.40
  6. Step 6: Final answer
    x = 124,426.56

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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.