Home / 140,817.90-194,324.49-77,153.52

Finding the Fourth Proportional to 140,817.90, 194,324.49 and 77,153.52

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Solution

The fourth proportional to 140,817.90, 194,324.49 and 77,153.52 is: 106,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,817.90 : 194,324.49 = 77,153.52 : x
  2. Step 2: Convert to fraction form
    140,817.90/194,324.49 = 77,153.52/x
  3. Step 3: Cross multiply
    140,817.90x = 194,324.49 × 77,153.52
  4. Step 4: Simplify right side
    140,817.90x = 14,992,818,425.70
  5. Step 5: Solve for x
    x = 14,992,818,425.70/140,817.90
  6. Step 6: Final answer
    x = 106,469.55

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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.