Home / 140,428.67-193,792.86-79,998.42

Finding the Fourth Proportional to 140,428.67, 193,792.86 and 79,998.42

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Solution

The fourth proportional to 140,428.67, 193,792.86 and 79,998.42 is: 110,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,428.67 : 193,792.86 = 79,998.42 : x
  2. Step 2: Convert to fraction form
    140,428.67/193,792.86 = 79,998.42/x
  3. Step 3: Cross multiply
    140,428.67x = 193,792.86 × 79,998.42
  4. Step 4: Simplify right side
    140,428.67x = 15,503,122,607.28
  5. Step 5: Solve for x
    x = 15,503,122,607.28/140,428.67
  6. Step 6: Final answer
    x = 110,398.56

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1.5x scale

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.