Home / 134,913.89-186,205.53-80,469.56

Finding the Fourth Proportional to 134,913.89, 186,205.53 and 80,469.56

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Solution

The fourth proportional to 134,913.89, 186,205.53 and 80,469.56 is: 111,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,913.89 : 186,205.53 = 80,469.56 : x
  2. Step 2: Convert to fraction form
    134,913.89/186,205.53 = 80,469.56/x
  3. Step 3: Cross multiply
    134,913.89x = 186,205.53 × 80,469.56
  4. Step 4: Simplify right side
    134,913.89x = 14,983,876,137.64
  5. Step 5: Solve for x
    x = 14,983,876,137.64/134,913.89
  6. Step 6: Final answer
    x = 111,062.52

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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.