Home / 115,204.47-158,991.39-64,233.72

Finding the Fourth Proportional to 115,204.47, 158,991.39 and 64,233.72

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Solution

The fourth proportional to 115,204.47, 158,991.39 and 64,233.72 is: 88,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,204.47 : 158,991.39 = 64,233.72 : x
  2. Step 2: Convert to fraction form
    115,204.47/158,991.39 = 64,233.72/x
  3. Step 3: Cross multiply
    115,204.47x = 158,991.39 × 64,233.72
  4. Step 4: Simplify right side
    115,204.47x = 10,212,608,427.67
  5. Step 5: Solve for x
    x = 10,212,608,427.67/115,204.47
  6. Step 6: Final answer
    x = 88,647.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.