Home / 109,393.20-164,089.78-26,287.20

Finding the Fourth Proportional to 109,393.20, 164,089.78 and 26,287.20

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Solution

The fourth proportional to 109,393.20, 164,089.78 and 26,287.20 is: 39,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,393.20 : 164,089.78 = 26,287.20 : x
  2. Step 2: Convert to fraction form
    109,393.20/164,089.78 = 26,287.20/x
  3. Step 3: Cross multiply
    109,393.20x = 164,089.78 × 26,287.20
  4. Step 4: Simplify right side
    109,393.20x = 4,313,459,912.93
  5. Step 5: Solve for x
    x = 4,313,459,912.93/109,393.20
  6. Step 6: Final answer
    x = 39,430.79

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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.