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Finding the Fourth Proportional to 165,694.34, 228,660.72 and 90,242.84

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Solution

The fourth proportional to 165,694.34, 228,660.72 and 90,242.84 is: 124,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,694.34 : 228,660.72 = 90,242.84 : x
  2. Step 2: Convert to fraction form
    165,694.34/228,660.72 = 90,242.84/x
  3. Step 3: Cross multiply
    165,694.34x = 228,660.72 × 90,242.84
  4. Step 4: Simplify right side
    165,694.34x = 20,634,992,769.24
  5. Step 5: Solve for x
    x = 20,634,992,769.24/165,694.34
  6. Step 6: Final answer
    x = 124,536.50

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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.