Home / 140,849.04-194,371.84-77,189.12

Finding the Fourth Proportional to 140,849.04, 194,371.84 and 77,189.12

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Solution

The fourth proportional to 140,849.04, 194,371.84 and 77,189.12 is: 106,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,849.04 : 194,371.84 = 77,189.12 : x
  2. Step 2: Convert to fraction form
    140,849.04/194,371.84 = 77,189.12/x
  3. Step 3: Cross multiply
    140,849.04x = 194,371.84 × 77,189.12
  4. Step 4: Simplify right side
    140,849.04x = 15,003,391,282.38
  5. Step 5: Solve for x
    x = 15,003,391,282.38/140,849.04
  6. Step 6: Final answer
    x = 106,521.08

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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.