Home / 140,675.68-194,134.88-77,012.48

Finding the Fourth Proportional to 140,675.68, 194,134.88 and 77,012.48

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Solution

The fourth proportional to 140,675.68, 194,134.88 and 77,012.48 is: 106,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,675.68 : 194,134.88 = 77,012.48 : x
  2. Step 2: Convert to fraction form
    140,675.68/194,134.88 = 77,012.48/x
  3. Step 3: Cross multiply
    140,675.68x = 194,134.88 × 77,012.48
  4. Step 4: Simplify right side
    140,675.68x = 14,950,808,563.30
  5. Step 5: Solve for x
    x = 14,950,808,563.30/140,675.68
  6. Step 6: Final answer
    x = 106,278.56

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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.