Home / 136,087.07-203,693.86-72,748.85

Finding the Fourth Proportional to 136,087.07, 203,693.86 and 72,748.85

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Solution

The fourth proportional to 136,087.07, 203,693.86 and 72,748.85 is: 108,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,087.07 : 203,693.86 = 72,748.85 : x
  2. Step 2: Convert to fraction form
    136,087.07/203,693.86 = 72,748.85/x
  3. Step 3: Cross multiply
    136,087.07x = 203,693.86 × 72,748.85
  4. Step 4: Simplify right side
    136,087.07x = 14,818,494,067.06
  5. Step 5: Solve for x
    x = 14,818,494,067.06/136,087.07
  6. Step 6: Final answer
    x = 108,889.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.