Home / 140,684.49-194,145.17-77,028.21

Finding the Fourth Proportional to 140,684.49, 194,145.17 and 77,028.21

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Solution

The fourth proportional to 140,684.49, 194,145.17 and 77,028.21 is: 106,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,684.49 : 194,145.17 = 77,028.21 : x
  2. Step 2: Convert to fraction form
    140,684.49/194,145.17 = 77,028.21/x
  3. Step 3: Cross multiply
    140,684.49x = 194,145.17 × 77,028.21
  4. Step 4: Simplify right side
    140,684.49x = 14,954,654,925.25
  5. Step 5: Solve for x
    x = 14,954,654,925.25/140,684.49
  6. Step 6: Final answer
    x = 106,299.24

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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.