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Finding the Fourth Proportional to 105,134.27, 145,063.63 and 60,413.63

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Solution

The fourth proportional to 105,134.27, 145,063.63 and 60,413.63 is: 83,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,134.27 : 145,063.63 = 60,413.63 : x
  2. Step 2: Convert to fraction form
    105,134.27/145,063.63 = 60,413.63/x
  3. Step 3: Cross multiply
    105,134.27x = 145,063.63 × 60,413.63
  4. Step 4: Simplify right side
    105,134.27x = 8,763,820,469.28
  5. Step 5: Solve for x
    x = 8,763,820,469.28/105,134.27
  6. Step 6: Final answer
    x = 83,358.36

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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.