Home / 105,134.28-145,063.64-60,413.64

Finding the Fourth Proportional to 105,134.28, 145,063.64 and 60,413.64

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Solution

The fourth proportional to 105,134.28, 145,063.64 and 60,413.64 is: 83,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,134.28 : 145,063.64 = 60,413.64 : x
  2. Step 2: Convert to fraction form
    105,134.28/145,063.64 = 60,413.64/x
  3. Step 3: Cross multiply
    105,134.28x = 145,063.64 × 60,413.64
  4. Step 4: Simplify right side
    105,134.28x = 8,763,822,524.05
  5. Step 5: Solve for x
    x = 8,763,822,524.05/105,134.28
  6. Step 6: Final answer
    x = 83,358.37

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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.