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Finding the Fourth Proportional to 108,137.53, 149,228.22 and 60,391.54

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Solution

The fourth proportional to 108,137.53, 149,228.22 and 60,391.54 is: 83,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,137.53 : 149,228.22 = 60,391.54 : x
  2. Step 2: Convert to fraction form
    108,137.53/149,228.22 = 60,391.54/x
  3. Step 3: Cross multiply
    108,137.53x = 149,228.22 × 60,391.54
  4. Step 4: Simplify right side
    108,137.53x = 9,012,122,017.26
  5. Step 5: Solve for x
    x = 9,012,122,017.26/108,137.53
  6. Step 6: Final answer
    x = 83,339.45

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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.