Home / 143,598.52-198,170.15-79,074.43

Finding the Fourth Proportional to 143,598.52, 198,170.15 and 79,074.43

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Solution

The fourth proportional to 143,598.52, 198,170.15 and 79,074.43 is: 109,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,598.52 : 198,170.15 = 79,074.43 : x
  2. Step 2: Convert to fraction form
    143,598.52/198,170.15 = 79,074.43/x
  3. Step 3: Cross multiply
    143,598.52x = 198,170.15 × 79,074.43
  4. Step 4: Simplify right side
    143,598.52x = 15,670,190,763.47
  5. Step 5: Solve for x
    x = 15,670,190,763.47/143,598.52
  6. Step 6: Final answer
    x = 109,125.01

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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.