Home / 141,795.93-195,687.87-78,133.73

Finding the Fourth Proportional to 141,795.93, 195,687.87 and 78,133.73

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Solution

The fourth proportional to 141,795.93, 195,687.87 and 78,133.73 is: 107,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,795.93 : 195,687.87 = 78,133.73 : x
  2. Step 2: Convert to fraction form
    141,795.93/195,687.87 = 78,133.73/x
  3. Step 3: Cross multiply
    141,795.93x = 195,687.87 × 78,133.73
  4. Step 4: Simplify right side
    141,795.93x = 15,289,823,028.16
  5. Step 5: Solve for x
    x = 15,289,823,028.16/141,795.93
  6. Step 6: Final answer
    x = 107,829.77

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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.