Home / 143,563.35-198,115.44-79,901.18

Finding the Fourth Proportional to 143,563.35, 198,115.44 and 79,901.18

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Solution

The fourth proportional to 143,563.35, 198,115.44 and 79,901.18 is: 110,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,563.35 : 198,115.44 = 79,901.18 : x
  2. Step 2: Convert to fraction form
    143,563.35/198,115.44 = 79,901.18/x
  3. Step 3: Cross multiply
    143,563.35x = 198,115.44 × 79,901.18
  4. Step 4: Simplify right side
    143,563.35x = 15,829,656,441.64
  5. Step 5: Solve for x
    x = 15,829,656,441.64/143,563.35
  6. Step 6: Final answer
    x = 110,262.52

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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.