Home / 128,795.76-193,194.36-58,626

Finding the Fourth Proportional to 128,795.76, 193,194.36 and 58,626

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Solution

The fourth proportional to 128,795.76, 193,194.36 and 58,626 is: 87,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,795.76 : 193,194.36 = 58,626 : x
  2. Step 2: Convert to fraction form
    128,795.76/193,194.36 = 58,626/x
  3. Step 3: Cross multiply
    128,795.76x = 193,194.36 × 58,626
  4. Step 4: Simplify right side
    128,795.76x = 11,326,212,549.36
  5. Step 5: Solve for x
    x = 11,326,212,549.36/128,795.76
  6. Step 6: Final answer
    x = 87,939.33

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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.