Home / 127,992.47-191,833.06-90,563.33

Finding the Fourth Proportional to 127,992.47, 191,833.06 and 90,563.33

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Solution

The fourth proportional to 127,992.47, 191,833.06 and 90,563.33 is: 135,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,992.47 : 191,833.06 = 90,563.33 : x
  2. Step 2: Convert to fraction form
    127,992.47/191,833.06 = 90,563.33/x
  3. Step 3: Cross multiply
    127,992.47x = 191,833.06 × 90,563.33
  4. Step 4: Simplify right side
    127,992.47x = 17,373,041,140.67
  5. Step 5: Solve for x
    x = 17,373,041,140.67/127,992.47
  6. Step 6: Final answer
    x = 135,734.87

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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.