Home / 128,729.36-193,094.02-49,843.58

Finding the Fourth Proportional to 128,729.36, 193,094.02 and 49,843.58

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Solution

The fourth proportional to 128,729.36, 193,094.02 and 49,843.58 is: 74,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,729.36 : 193,094.02 = 49,843.58 : x
  2. Step 2: Convert to fraction form
    128,729.36/193,094.02 = 49,843.58/x
  3. Step 3: Cross multiply
    128,729.36x = 193,094.02 × 49,843.58
  4. Step 4: Simplify right side
    128,729.36x = 9,624,497,233.39
  5. Step 5: Solve for x
    x = 9,624,497,233.39/128,729.36
  6. Step 6: Final answer
    x = 74,765.36

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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.