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Finding the Fourth Proportional to 108,675, 149,971.91 and 63,384.26

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Solution

The fourth proportional to 108,675, 149,971.91 and 63,384.26 is: 87,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,675 : 149,971.91 = 63,384.26 : x
  2. Step 2: Convert to fraction form
    108,675/149,971.91 = 63,384.26/x
  3. Step 3: Cross multiply
    108,675x = 149,971.91 × 63,384.26
  4. Step 4: Simplify right side
    108,675x = 9,505,857,469.36
  5. Step 5: Solve for x
    x = 9,505,857,469.36/108,675
  6. Step 6: Final answer
    x = 87,470.51

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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.