Home / 108,147.78-149,242.38-60,401.82

Finding the Fourth Proportional to 108,147.78, 149,242.38 and 60,401.82

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Solution

The fourth proportional to 108,147.78, 149,242.38 and 60,401.82 is: 83,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,147.78 : 149,242.38 = 60,401.82 : x
  2. Step 2: Convert to fraction form
    108,147.78/149,242.38 = 60,401.82/x
  3. Step 3: Cross multiply
    108,147.78x = 149,242.38 × 60,401.82
  4. Step 4: Simplify right side
    108,147.78x = 9,014,511,373.13
  5. Step 5: Solve for x
    x = 9,014,511,373.13/108,147.78
  6. Step 6: Final answer
    x = 83,353.64

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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.