Home / 148,629.42-205,108.05-88,249.69

Finding the Fourth Proportional to 148,629.42, 205,108.05 and 88,249.69

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Solution

The fourth proportional to 148,629.42, 205,108.05 and 88,249.69 is: 121,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,629.42 : 205,108.05 = 88,249.69 : x
  2. Step 2: Convert to fraction form
    148,629.42/205,108.05 = 88,249.69/x
  3. Step 3: Cross multiply
    148,629.42x = 205,108.05 × 88,249.69
  4. Step 4: Simplify right side
    148,629.42x = 18,100,721,829.00
  5. Step 5: Solve for x
    x = 18,100,721,829.00/148,629.42
  6. Step 6: Final answer
    x = 121,784.25

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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.