Home / 140,428.98-193,790.73-76,766.22

Finding the Fourth Proportional to 140,428.98, 193,790.73 and 76,766.22

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Solution

The fourth proportional to 140,428.98, 193,790.73 and 76,766.22 is: 105,936.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,428.98 : 193,790.73 = 76,766.22 : x
  2. Step 2: Convert to fraction form
    140,428.98/193,790.73 = 76,766.22/x
  3. Step 3: Cross multiply
    140,428.98x = 193,790.73 × 76,766.22
  4. Step 4: Simplify right side
    140,428.98x = 14,876,581,813.14
  5. Step 5: Solve for x
    x = 14,876,581,813.14/140,428.98
  6. Step 6: Final answer
    x = 105,936.69

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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.