Home / 107,918.09-148,921.49-60,162.20

Finding the Fourth Proportional to 107,918.09, 148,921.49 and 60,162.20

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Solution

The fourth proportional to 107,918.09, 148,921.49 and 60,162.20 is: 83,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,918.09 : 148,921.49 = 60,162.20 : x
  2. Step 2: Convert to fraction form
    107,918.09/148,921.49 = 60,162.20/x
  3. Step 3: Cross multiply
    107,918.09x = 148,921.49 × 60,162.20
  4. Step 4: Simplify right side
    107,918.09x = 8,959,443,871.48
  5. Step 5: Solve for x
    x = 8,959,443,871.48/107,918.09
  6. Step 6: Final answer
    x = 83,020.78

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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.