Home / 140,634.61-194,075.07-76,103.80

Finding the Fourth Proportional to 140,634.61, 194,075.07 and 76,103.80

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Solution

The fourth proportional to 140,634.61, 194,075.07 and 76,103.80 is: 105,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,634.61 : 194,075.07 = 76,103.80 : x
  2. Step 2: Convert to fraction form
    140,634.61/194,075.07 = 76,103.80/x
  3. Step 3: Cross multiply
    140,634.61x = 194,075.07 × 76,103.80
  4. Step 4: Simplify right side
    140,634.61x = 14,769,850,312.27
  5. Step 5: Solve for x
    x = 14,769,850,312.27/140,634.61
  6. Step 6: Final answer
    x = 105,022.87

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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.