Home / 165,667.20-228,623.34-90,215.64

Finding the Fourth Proportional to 165,667.20, 228,623.34 and 90,215.64

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Solution

The fourth proportional to 165,667.20, 228,623.34 and 90,215.64 is: 124,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,667.20 : 228,623.34 = 90,215.64 : x
  2. Step 2: Convert to fraction form
    165,667.20/228,623.34 = 90,215.64/x
  3. Step 3: Cross multiply
    165,667.20x = 228,623.34 × 90,215.64
  4. Step 4: Simplify right side
    165,667.20x = 20,625,400,937.04
  5. Step 5: Solve for x
    x = 20,625,400,937.04/165,667.20
  6. Step 6: Final answer
    x = 124,499.00

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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.