Home / 209,861.31-314,884.91-109,997.76

Finding the Fourth Proportional to 209,861.31, 314,884.91 and 109,997.76

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Solution

The fourth proportional to 209,861.31, 314,884.91 and 109,997.76 is: 165,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,861.31 : 314,884.91 = 109,997.76 : x
  2. Step 2: Convert to fraction form
    209,861.31/314,884.91 = 109,997.76/x
  3. Step 3: Cross multiply
    209,861.31x = 314,884.91 × 109,997.76
  4. Step 4: Simplify right side
    209,861.31x = 34,636,634,757.80
  5. Step 5: Solve for x
    x = 34,636,634,757.80/209,861.31
  6. Step 6: Final answer
    x = 165,045.36

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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.