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Finding the Fourth Proportional to 108,017.71, 149,040.57 and 62,669.42

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Solution

The fourth proportional to 108,017.71, 149,040.57 and 62,669.42 is: 86,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,017.71 : 149,040.57 = 62,669.42 : x
  2. Step 2: Convert to fraction form
    108,017.71/149,040.57 = 62,669.42/x
  3. Step 3: Cross multiply
    108,017.71x = 149,040.57 × 62,669.42
  4. Step 4: Simplify right side
    108,017.71x = 9,340,286,078.37
  5. Step 5: Solve for x
    x = 9,340,286,078.37/108,017.71
  6. Step 6: Final answer
    x = 86,469.95

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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.