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Finding the Fourth Proportional to 108,289, 149,431.23 and 62,963.77

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Solution

The fourth proportional to 108,289, 149,431.23 and 62,963.77 is: 86,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,289 : 149,431.23 = 62,963.77 : x
  2. Step 2: Convert to fraction form
    108,289/149,431.23 = 62,963.77/x
  3. Step 3: Cross multiply
    108,289x = 149,431.23 × 62,963.77
  4. Step 4: Simplify right side
    108,289x = 9,408,753,596.54
  5. Step 5: Solve for x
    x = 9,408,753,596.54/108,289
  6. Step 6: Final answer
    x = 86,885.59

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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.