Home / 199,948.22-299,861.78-105,127.31

Finding the Fourth Proportional to 199,948.22, 299,861.78 and 105,127.31

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Solution

The fourth proportional to 199,948.22, 299,861.78 and 105,127.31 is: 157,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,948.22 : 299,861.78 = 105,127.31 : x
  2. Step 2: Convert to fraction form
    199,948.22/299,861.78 = 105,127.31/x
  3. Step 3: Cross multiply
    199,948.22x = 299,861.78 × 105,127.31
  4. Step 4: Simplify right side
    199,948.22x = 31,523,660,278.27
  5. Step 5: Solve for x
    x = 31,523,660,278.27/199,948.22
  6. Step 6: Final answer
    x = 157,659.12

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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.