Home / 109,336.20-164,004.30-99,659.40

Finding the Fourth Proportional to 109,336.20, 164,004.30 and 99,659.40

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Solution

The fourth proportional to 109,336.20, 164,004.30 and 99,659.40 is: 149,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,336.20 : 164,004.30 = 99,659.40 : x
  2. Step 2: Convert to fraction form
    109,336.20/164,004.30 = 99,659.40/x
  3. Step 3: Cross multiply
    109,336.20x = 164,004.30 × 99,659.40
  4. Step 4: Simplify right side
    109,336.20x = 16,344,570,135.42
  5. Step 5: Solve for x
    x = 16,344,570,135.42/109,336.20
  6. Step 6: Final answer
    x = 149,489.10

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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.