Home / 202,638.11-304,009.67-107,790.18

Finding the Fourth Proportional to 202,638.11, 304,009.67 and 107,790.18

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Solution

The fourth proportional to 202,638.11, 304,009.67 and 107,790.18 is: 161,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,638.11 : 304,009.67 = 107,790.18 : x
  2. Step 2: Convert to fraction form
    202,638.11/304,009.67 = 107,790.18/x
  3. Step 3: Cross multiply
    202,638.11x = 304,009.67 × 107,790.18
  4. Step 4: Simplify right side
    202,638.11x = 32,769,256,180.48
  5. Step 5: Solve for x
    x = 32,769,256,180.48/202,638.11
  6. Step 6: Final answer
    x = 161,713.20

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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.