Home / 128,727.35-193,091.03-49,841.58

Finding the Fourth Proportional to 128,727.35, 193,091.03 and 49,841.58

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Solution

The fourth proportional to 128,727.35, 193,091.03 and 49,841.58 is: 74,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,727.35 : 193,091.03 = 49,841.58 : x
  2. Step 2: Convert to fraction form
    128,727.35/193,091.03 = 49,841.58/x
  3. Step 3: Cross multiply
    128,727.35x = 193,091.03 × 49,841.58
  4. Step 4: Simplify right side
    128,727.35x = 9,623,961,524.59
  5. Step 5: Solve for x
    x = 9,623,961,524.59/128,727.35
  6. Step 6: Final answer
    x = 74,762.37

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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.