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Finding the Fourth Proportional to 108,000.39, 149,040.97 and 60,255.75

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Solution

The fourth proportional to 108,000.39, 149,040.97 and 60,255.75 is: 83,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,000.39 : 149,040.97 = 60,255.75 : x
  2. Step 2: Convert to fraction form
    108,000.39/149,040.97 = 60,255.75/x
  3. Step 3: Cross multiply
    108,000.39x = 149,040.97 × 60,255.75
  4. Step 4: Simplify right side
    108,000.39x = 8,980,575,277.44
  5. Step 5: Solve for x
    x = 8,980,575,277.44/108,000.39
  6. Step 6: Final answer
    x = 83,153.17

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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.