Home / 143,914.80-198,602.63-79,382.60

Finding the Fourth Proportional to 143,914.80, 198,602.63 and 79,382.60

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Solution

The fourth proportional to 143,914.80, 198,602.63 and 79,382.60 is: 109,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,914.80 : 198,602.63 = 79,382.60 : x
  2. Step 2: Convert to fraction form
    143,914.80/198,602.63 = 79,382.60/x
  3. Step 3: Cross multiply
    143,914.80x = 198,602.63 × 79,382.60
  4. Step 4: Simplify right side
    143,914.80x = 15,765,591,746.31
  5. Step 5: Solve for x
    x = 15,765,591,746.31/143,914.80
  6. Step 6: Final answer
    x = 109,548.09

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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.