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Finding the Fourth Proportional to 149,476.92, 206,269.92 and 85,810.56

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Solution

The fourth proportional to 149,476.92, 206,269.92 and 85,810.56 is: 118,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,476.92 : 206,269.92 = 85,810.56 : x
  2. Step 2: Convert to fraction form
    149,476.92/206,269.92 = 85,810.56/x
  3. Step 3: Cross multiply
    149,476.92x = 206,269.92 × 85,810.56
  4. Step 4: Simplify right side
    149,476.92x = 17,700,137,346.36
  5. Step 5: Solve for x
    x = 17,700,137,346.36/149,476.92
  6. Step 6: Final answer
    x = 118,413.85

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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.