Home / 128,747.22-193,120.56-40,001.46

Finding the Fourth Proportional to 128,747.22, 193,120.56 and 40,001.46

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Solution

The fourth proportional to 128,747.22, 193,120.56 and 40,001.46 is: 60,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,747.22 : 193,120.56 = 40,001.46 : x
  2. Step 2: Convert to fraction form
    128,747.22/193,120.56 = 40,001.46/x
  3. Step 3: Cross multiply
    128,747.22x = 193,120.56 × 40,001.46
  4. Step 4: Simplify right side
    128,747.22x = 7,725,104,356.02
  5. Step 5: Solve for x
    x = 7,725,104,356.02/128,747.22
  6. Step 6: Final answer
    x = 60,002.11

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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.