Home / 140,554.05-193,966.13-76,890.48

Finding the Fourth Proportional to 140,554.05, 193,966.13 and 76,890.48

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Solution

The fourth proportional to 140,554.05, 193,966.13 and 76,890.48 is: 106,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,554.05 : 193,966.13 = 76,890.48 : x
  2. Step 2: Convert to fraction form
    140,554.05/193,966.13 = 76,890.48/x
  3. Step 3: Cross multiply
    140,554.05x = 193,966.13 × 76,890.48
  4. Step 4: Simplify right side
    140,554.05x = 14,914,148,839.44
  5. Step 5: Solve for x
    x = 14,914,148,839.44/140,554.05
  6. Step 6: Final answer
    x = 106,109.71

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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.