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Finding the Fourth Proportional to 128,554.93, 192,800.92 and 53,675.69

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Solution

The fourth proportional to 128,554.93, 192,800.92 and 53,675.69 is: 80,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,554.93 : 192,800.92 = 53,675.69 : x
  2. Step 2: Convert to fraction form
    128,554.93/192,800.92 = 53,675.69/x
  3. Step 3: Cross multiply
    128,554.93x = 192,800.92 × 53,675.69
  4. Step 4: Simplify right side
    128,554.93x = 10,348,722,413.63
  5. Step 5: Solve for x
    x = 10,348,722,413.63/128,554.93
  6. Step 6: Final answer
    x = 80,500.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.