Home / 143,860.14-198,552.87-90,191.70

Finding the Fourth Proportional to 143,860.14, 198,552.87 and 90,191.70

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Solution

The fourth proportional to 143,860.14, 198,552.87 and 90,191.70 is: 124,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,860.14 : 198,552.87 = 90,191.70 : x
  2. Step 2: Convert to fraction form
    143,860.14/198,552.87 = 90,191.70/x
  3. Step 3: Cross multiply
    143,860.14x = 198,552.87 × 90,191.70
  4. Step 4: Simplify right side
    143,860.14x = 17,907,820,885.18
  5. Step 5: Solve for x
    x = 17,907,820,885.18/143,860.14
  6. Step 6: Final answer
    x = 124,480.77

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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.