Home / 105,611.36-145,738.10-60,287.54

Finding the Fourth Proportional to 105,611.36, 145,738.10 and 60,287.54

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Solution

The fourth proportional to 105,611.36, 145,738.10 and 60,287.54 is: 83,193.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,611.36 : 145,738.10 = 60,287.54 : x
  2. Step 2: Convert to fraction form
    105,611.36/145,738.10 = 60,287.54/x
  3. Step 3: Cross multiply
    105,611.36x = 145,738.10 × 60,287.54
  4. Step 4: Simplify right side
    105,611.36x = 8,786,190,503.15
  5. Step 5: Solve for x
    x = 8,786,190,503.15/105,611.36
  6. Step 6: Final answer
    x = 83,193.62

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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.