Home / 108,708.97-149,989.82-62,757.36

Finding the Fourth Proportional to 108,708.97, 149,989.82 and 62,757.36

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Solution

The fourth proportional to 108,708.97, 149,989.82 and 62,757.36 is: 86,588.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,708.97 : 149,989.82 = 62,757.36 : x
  2. Step 2: Convert to fraction form
    108,708.97/149,989.82 = 62,757.36/x
  3. Step 3: Cross multiply
    108,708.97x = 149,989.82 × 62,757.36
  4. Step 4: Simplify right side
    108,708.97x = 9,412,965,130.08
  5. Step 5: Solve for x
    x = 9,412,965,130.08/108,708.97
  6. Step 6: Final answer
    x = 86,588.67

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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.