Home / 142,849.26-197,138.16-79,187.04

Finding the Fourth Proportional to 142,849.26, 197,138.16 and 79,187.04

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Solution

The fourth proportional to 142,849.26, 197,138.16 and 79,187.04 is: 109,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,849.26 : 197,138.16 = 79,187.04 : x
  2. Step 2: Convert to fraction form
    142,849.26/197,138.16 = 79,187.04/x
  3. Step 3: Cross multiply
    142,849.26x = 197,138.16 × 79,187.04
  4. Step 4: Simplify right side
    142,849.26x = 15,610,787,361.45
  5. Step 5: Solve for x
    x = 15,610,787,361.45/142,849.26
  6. Step 6: Final answer
    x = 109,281.54

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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.