Home / 107,661.22-148,418.51-75,731.02

Finding the Fourth Proportional to 107,661.22, 148,418.51 and 75,731.02

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Solution

The fourth proportional to 107,661.22, 148,418.51 and 75,731.02 is: 104,400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,661.22 : 148,418.51 = 75,731.02 : x
  2. Step 2: Convert to fraction form
    107,661.22/148,418.51 = 75,731.02/x
  3. Step 3: Cross multiply
    107,661.22x = 148,418.51 × 75,731.02
  4. Step 4: Simplify right side
    107,661.22x = 11,239,885,149.18
  5. Step 5: Solve for x
    x = 11,239,885,149.18/107,661.22
  6. Step 6: Final answer
    x = 104,400.50

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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.