Home / 109,654.20-164,189.70-69,996.60

Finding the Fourth Proportional to 109,654.20, 164,189.70 and 69,996.60

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Solution

The fourth proportional to 109,654.20, 164,189.70 and 69,996.60 is: 104,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,654.20 : 164,189.70 = 69,996.60 : x
  2. Step 2: Convert to fraction form
    109,654.20/164,189.70 = 69,996.60/x
  3. Step 3: Cross multiply
    109,654.20x = 164,189.70 × 69,996.60
  4. Step 4: Simplify right side
    109,654.20x = 11,492,720,755.02
  5. Step 5: Solve for x
    x = 11,492,720,755.02/109,654.20
  6. Step 6: Final answer
    x = 104,808.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.