Home / 143,304.87-197,759.28-79,641.39

Finding the Fourth Proportional to 143,304.87, 197,759.28 and 79,641.39

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Solution

The fourth proportional to 143,304.87, 197,759.28 and 79,641.39 is: 109,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,304.87 : 197,759.28 = 79,641.39 : x
  2. Step 2: Convert to fraction form
    143,304.87/197,759.28 = 79,641.39/x
  3. Step 3: Cross multiply
    143,304.87x = 197,759.28 × 79,641.39
  4. Step 4: Simplify right side
    143,304.87x = 15,749,823,944.60
  5. Step 5: Solve for x
    x = 15,749,823,944.60/143,304.87
  6. Step 6: Final answer
    x = 109,904.32

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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.