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Finding the Fourth Proportional to 106,419.92, 146,885.08 and 63,970.25

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Solution

The fourth proportional to 106,419.92, 146,885.08 and 63,970.25 is: 88,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,419.92 : 146,885.08 = 63,970.25 : x
  2. Step 2: Convert to fraction form
    106,419.92/146,885.08 = 63,970.25/x
  3. Step 3: Cross multiply
    106,419.92x = 146,885.08 × 63,970.25
  4. Step 4: Simplify right side
    106,419.92x = 9,396,275,288.87
  5. Step 5: Solve for x
    x = 9,396,275,288.87/106,419.92
  6. Step 6: Final answer
    x = 88,294.33

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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.