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Finding the Fourth Proportional to 143,651.63, 198,237.35 and 79,119.63

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Solution

The fourth proportional to 143,651.63, 198,237.35 and 79,119.63 is: 109,184.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,651.63 : 198,237.35 = 79,119.63 : x
  2. Step 2: Convert to fraction form
    143,651.63/198,237.35 = 79,119.63/x
  3. Step 3: Cross multiply
    143,651.63x = 198,237.35 × 79,119.63
  4. Step 4: Simplify right side
    143,651.63x = 15,684,465,388.58
  5. Step 5: Solve for x
    x = 15,684,465,388.58/143,651.63
  6. Step 6: Final answer
    x = 109,184.04

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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.