Home / 199,820.22-299,744.01-66,695.10

Finding the Fourth Proportional to 199,820.22, 299,744.01 and 66,695.10

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Solution

The fourth proportional to 199,820.22, 299,744.01 and 66,695.10 is: 100,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,820.22 : 299,744.01 = 66,695.10 : x
  2. Step 2: Convert to fraction form
    199,820.22/299,744.01 = 66,695.10/x
  3. Step 3: Cross multiply
    199,820.22x = 299,744.01 × 66,695.10
  4. Step 4: Simplify right side
    199,820.22x = 19,991,456,721.35
  5. Step 5: Solve for x
    x = 19,991,456,721.35/199,820.22
  6. Step 6: Final answer
    x = 100,047.22

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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.