Home / 109,401.12-164,101.68-30,515.22

Finding the Fourth Proportional to 109,401.12, 164,101.68 and 30,515.22

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Solution

The fourth proportional to 109,401.12, 164,101.68 and 30,515.22 is: 45,772.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,401.12 : 164,101.68 = 30,515.22 : x
  2. Step 2: Convert to fraction form
    109,401.12/164,101.68 = 30,515.22/x
  3. Step 3: Cross multiply
    109,401.12x = 164,101.68 × 30,515.22
  4. Step 4: Simplify right side
    109,401.12x = 5,007,598,867.57
  5. Step 5: Solve for x
    x = 5,007,598,867.57/109,401.12
  6. Step 6: Final answer
    x = 45,772.83

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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.