Home / 133,258.35-183,878.75-85,576.28

Finding the Fourth Proportional to 133,258.35, 183,878.75 and 85,576.28

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Solution

The fourth proportional to 133,258.35, 183,878.75 and 85,576.28 is: 118,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,258.35 : 183,878.75 = 85,576.28 : x
  2. Step 2: Convert to fraction form
    133,258.35/183,878.75 = 85,576.28/x
  3. Step 3: Cross multiply
    133,258.35x = 183,878.75 × 85,576.28
  4. Step 4: Simplify right side
    133,258.35x = 15,735,659,380.14
  5. Step 5: Solve for x
    x = 15,735,659,380.14/133,258.35
  6. Step 6: Final answer
    x = 118,083.86

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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.