Home / 140,675.94-194,132.78-77,013.73

Finding the Fourth Proportional to 140,675.94, 194,132.78 and 77,013.73

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Solution

The fourth proportional to 140,675.94, 194,132.78 and 77,013.73 is: 106,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,675.94 : 194,132.78 = 77,013.73 : x
  2. Step 2: Convert to fraction form
    140,675.94/194,132.78 = 77,013.73/x
  3. Step 3: Cross multiply
    140,675.94x = 194,132.78 × 77,013.73
  4. Step 4: Simplify right side
    140,675.94x = 14,950,889,503.07
  5. Step 5: Solve for x
    x = 14,950,889,503.07/140,675.94
  6. Step 6: Final answer
    x = 106,278.94

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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.