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Finding the Fourth Proportional to 101,873.76, 151,760.28 and 98,778.48

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Solution

The fourth proportional to 101,873.76, 151,760.28 and 98,778.48 is: 147,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,873.76 : 151,760.28 = 98,778.48 : x
  2. Step 2: Convert to fraction form
    101,873.76/151,760.28 = 98,778.48/x
  3. Step 3: Cross multiply
    101,873.76x = 151,760.28 × 98,778.48
  4. Step 4: Simplify right side
    101,873.76x = 14,990,649,782.77
  5. Step 5: Solve for x
    x = 14,990,649,782.77/101,873.76
  6. Step 6: Final answer
    x = 147,149.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.