Home / 140,765.40-194,256.90-77,103

Finding the Fourth Proportional to 140,765.40, 194,256.90 and 77,103

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Solution

The fourth proportional to 140,765.40, 194,256.90 and 77,103 is: 106,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,765.40 : 194,256.90 = 77,103 : x
  2. Step 2: Convert to fraction form
    140,765.40/194,256.90 = 77,103/x
  3. Step 3: Cross multiply
    140,765.40x = 194,256.90 × 77,103
  4. Step 4: Simplify right side
    140,765.40x = 14,977,789,760.70
  5. Step 5: Solve for x
    x = 14,977,789,760.70/140,765.40
  6. Step 6: Final answer
    x = 106,402.49

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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.