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Finding the Fourth Proportional to 111,270, 153,552.60 and 60,967.92

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Solution

The fourth proportional to 111,270, 153,552.60 and 60,967.92 is: 84,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,270 : 153,552.60 = 60,967.92 : x
  2. Step 2: Convert to fraction form
    111,270/153,552.60 = 60,967.92/x
  3. Step 3: Cross multiply
    111,270x = 153,552.60 × 60,967.92
  4. Step 4: Simplify right side
    111,270x = 9,361,782,632.59
  5. Step 5: Solve for x
    x = 9,361,782,632.59/111,270
  6. Step 6: Final answer
    x = 84,135.73

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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.