Home / 143,891.37-198,584.87-86,549.13

Finding the Fourth Proportional to 143,891.37, 198,584.87 and 86,549.13

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Solution

The fourth proportional to 143,891.37, 198,584.87 and 86,549.13 is: 119,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,891.37 : 198,584.87 = 86,549.13 : x
  2. Step 2: Convert to fraction form
    143,891.37/198,584.87 = 86,549.13/x
  3. Step 3: Cross multiply
    143,891.37x = 198,584.87 × 86,549.13
  4. Step 4: Simplify right side
    143,891.37x = 17,187,347,296.92
  5. Step 5: Solve for x
    x = 17,187,347,296.92/143,891.37
  6. Step 6: Final answer
    x = 119,446.69

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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.