Home / 209,073.30-313,632.74-66,885.15

Finding the Fourth Proportional to 209,073.30, 313,632.74 and 66,885.15

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Solution

The fourth proportional to 209,073.30, 313,632.74 and 66,885.15 is: 100,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,073.30 : 313,632.74 = 66,885.15 : x
  2. Step 2: Convert to fraction form
    209,073.30/313,632.74 = 66,885.15/x
  3. Step 3: Cross multiply
    209,073.30x = 313,632.74 × 66,885.15
  4. Step 4: Simplify right side
    209,073.30x = 20,977,373,722.38
  5. Step 5: Solve for x
    x = 20,977,373,722.38/209,073.30
  6. Step 6: Final answer
    x = 100,335.02

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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.