Home / 199,835.18-275,769.21-109,189.16

Finding the Fourth Proportional to 199,835.18, 275,769.21 and 109,189.16

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Solution

The fourth proportional to 199,835.18, 275,769.21 and 109,189.16 is: 150,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,835.18 : 275,769.21 = 109,189.16 : x
  2. Step 2: Convert to fraction form
    199,835.18/275,769.21 = 109,189.16/x
  3. Step 3: Cross multiply
    199,835.18x = 275,769.21 × 109,189.16
  4. Step 4: Simplify right side
    199,835.18x = 30,111,008,393.76
  5. Step 5: Solve for x
    x = 30,111,008,393.76/199,835.18
  6. Step 6: Final answer
    x = 150,679.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.