Home / 140,750.42-194,240.25-77,091.74

Finding the Fourth Proportional to 140,750.42, 194,240.25 and 77,091.74

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Solution

The fourth proportional to 140,750.42, 194,240.25 and 77,091.74 is: 106,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,750.42 : 194,240.25 = 77,091.74 : x
  2. Step 2: Convert to fraction form
    140,750.42/194,240.25 = 77,091.74/x
  3. Step 3: Cross multiply
    140,750.42x = 194,240.25 × 77,091.74
  4. Step 4: Simplify right side
    140,750.42x = 14,974,318,850.54
  5. Step 5: Solve for x
    x = 14,974,318,850.54/140,750.42
  6. Step 6: Final answer
    x = 106,389.16

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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.