Home / 128,825.28-193,215.36-34,056.36

Finding the Fourth Proportional to 128,825.28, 193,215.36 and 34,056.36

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Solution

The fourth proportional to 128,825.28, 193,215.36 and 34,056.36 is: 51,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825.28 : 193,215.36 = 34,056.36 : x
  2. Step 2: Convert to fraction form
    128,825.28/193,215.36 = 34,056.36/x
  3. Step 3: Cross multiply
    128,825.28x = 193,215.36 × 34,056.36
  4. Step 4: Simplify right side
    128,825.28x = 6,580,211,857.69
  5. Step 5: Solve for x
    x = 6,580,211,857.69/128,825.28
  6. Step 6: Final answer
    x = 51,078.58

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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.