Home / 128,829.28-193,221.36-34,060.36

Finding the Fourth Proportional to 128,829.28, 193,221.36 and 34,060.36

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Solution

The fourth proportional to 128,829.28, 193,221.36 and 34,060.36 is: 51,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,829.28 : 193,221.36 = 34,060.36 : x
  2. Step 2: Convert to fraction form
    128,829.28/193,221.36 = 34,060.36/x
  3. Step 3: Cross multiply
    128,829.28x = 193,221.36 × 34,060.36
  4. Step 4: Simplify right side
    128,829.28x = 6,581,189,081.29
  5. Step 5: Solve for x
    x = 6,581,189,081.29/128,829.28
  6. Step 6: Final answer
    x = 51,084.58

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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.