Home / 140,677.70-194,139.60-77,021.42

Finding the Fourth Proportional to 140,677.70, 194,139.60 and 77,021.42

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Solution

The fourth proportional to 140,677.70, 194,139.60 and 77,021.42 is: 106,291.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,677.70 : 194,139.60 = 77,021.42 : x
  2. Step 2: Convert to fraction form
    140,677.70/194,139.60 = 77,021.42/x
  3. Step 3: Cross multiply
    140,677.70x = 194,139.60 × 77,021.42
  4. Step 4: Simplify right side
    140,677.70x = 14,952,907,670.23
  5. Step 5: Solve for x
    x = 14,952,907,670.23/140,677.70
  6. Step 6: Final answer
    x = 106,291.95

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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.