Home / 140,427.65-193,790.21-76,765.43

Finding the Fourth Proportional to 140,427.65, 193,790.21 and 76,765.43

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Solution

The fourth proportional to 140,427.65, 193,790.21 and 76,765.43 is: 105,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.65 : 193,790.21 = 76,765.43 : x
  2. Step 2: Convert to fraction form
    140,427.65/193,790.21 = 76,765.43/x
  3. Step 3: Cross multiply
    140,427.65x = 193,790.21 × 76,765.43
  4. Step 4: Simplify right side
    140,427.65x = 14,876,387,447.66
  5. Step 5: Solve for x
    x = 14,876,387,447.66/140,427.65
  6. Step 6: Final answer
    x = 105,936.32

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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.