Home / 108,902.06-150,170.91-86,204.78

Finding the Fourth Proportional to 108,902.06, 150,170.91 and 86,204.78

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Solution

The fourth proportional to 108,902.06, 150,170.91 and 86,204.78 is: 118,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,902.06 : 150,170.91 = 86,204.78 : x
  2. Step 2: Convert to fraction form
    108,902.06/150,170.91 = 86,204.78/x
  3. Step 3: Cross multiply
    108,902.06x = 150,170.91 × 86,204.78
  4. Step 4: Simplify right side
    108,902.06x = 12,945,450,258.95
  5. Step 5: Solve for x
    x = 12,945,450,258.95/108,902.06
  6. Step 6: Final answer
    x = 118,872.41

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1.5x scale

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.