Home / 140,669.20-194,122.20-77,006.80

Finding the Fourth Proportional to 140,669.20, 194,122.20 and 77,006.80

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Solution

The fourth proportional to 140,669.20, 194,122.20 and 77,006.80 is: 106,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,669.20 : 194,122.20 = 77,006.80 : x
  2. Step 2: Convert to fraction form
    140,669.20/194,122.20 = 77,006.80/x
  3. Step 3: Cross multiply
    140,669.20x = 194,122.20 × 77,006.80
  4. Step 4: Simplify right side
    140,669.20x = 14,948,729,430.96
  5. Step 5: Solve for x
    x = 14,948,729,430.96/140,669.20
  6. Step 6: Final answer
    x = 106,268.67

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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.