Home / 128,842.28-193,240.86-34,073.36

Finding the Fourth Proportional to 128,842.28, 193,240.86 and 34,073.36

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Solution

The fourth proportional to 128,842.28, 193,240.86 and 34,073.36 is: 51,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,842.28 : 193,240.86 = 34,073.36 : x
  2. Step 2: Convert to fraction form
    128,842.28/193,240.86 = 34,073.36/x
  3. Step 3: Cross multiply
    128,842.28x = 193,240.86 × 34,073.36
  4. Step 4: Simplify right side
    128,842.28x = 6,584,365,389.49
  5. Step 5: Solve for x
    x = 6,584,365,389.49/128,842.28
  6. Step 6: Final answer
    x = 51,104.07

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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.