Home / 104,231.96-143,787.28-69,778.06

Finding the Fourth Proportional to 104,231.96, 143,787.28 and 69,778.06

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Solution

The fourth proportional to 104,231.96, 143,787.28 and 69,778.06 is: 96,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,231.96 : 143,787.28 = 69,778.06 : x
  2. Step 2: Convert to fraction form
    104,231.96/143,787.28 = 69,778.06/x
  3. Step 3: Cross multiply
    104,231.96x = 143,787.28 × 69,778.06
  4. Step 4: Simplify right side
    104,231.96x = 10,033,196,851.75
  5. Step 5: Solve for x
    x = 10,033,196,851.75/104,231.96
  6. Step 6: Final answer
    x = 96,258.35

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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.