Home / 120,849.33-166,792.05-100,674.26

Finding the Fourth Proportional to 120,849.33, 166,792.05 and 100,674.26

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Solution

The fourth proportional to 120,849.33, 166,792.05 and 100,674.26 is: 138,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,849.33 : 166,792.05 = 100,674.26 : x
  2. Step 2: Convert to fraction form
    120,849.33/166,792.05 = 100,674.26/x
  3. Step 3: Cross multiply
    120,849.33x = 166,792.05 × 100,674.26
  4. Step 4: Simplify right side
    120,849.33x = 16,791,665,373.67
  5. Step 5: Solve for x
    x = 16,791,665,373.67/120,849.33
  6. Step 6: Final answer
    x = 138,947.11

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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.