Home / 128,825.47-193,147.66-56,744.17

Finding the Fourth Proportional to 128,825.47, 193,147.66 and 56,744.17

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Solution

The fourth proportional to 128,825.47, 193,147.66 and 56,744.17 is: 85,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825.47 : 193,147.66 = 56,744.17 : x
  2. Step 2: Convert to fraction form
    128,825.47/193,147.66 = 56,744.17/x
  3. Step 3: Cross multiply
    128,825.47x = 193,147.66 × 56,744.17
  4. Step 4: Simplify right side
    128,825.47x = 10,960,002,923.02
  5. Step 5: Solve for x
    x = 10,960,002,923.02/128,825.47
  6. Step 6: Final answer
    x = 85,076.37

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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.