Home / 209,900.28-314,846.10-69,660.12

Finding the Fourth Proportional to 209,900.28, 314,846.10 and 69,660.12

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Solution

The fourth proportional to 209,900.28, 314,846.10 and 69,660.12 is: 104,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,900.28 : 314,846.10 = 69,660.12 : x
  2. Step 2: Convert to fraction form
    209,900.28/314,846.10 = 69,660.12/x
  3. Step 3: Cross multiply
    209,900.28x = 314,846.10 × 69,660.12
  4. Step 4: Simplify right side
    209,900.28x = 21,932,217,107.53
  5. Step 5: Solve for x
    x = 21,932,217,107.53/209,900.28
  6. Step 6: Final answer
    x = 104,488.75

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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.