Home / 128,040.82-192,081.98-48,085.02

Finding the Fourth Proportional to 128,040.82, 192,081.98 and 48,085.02

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Solution

The fourth proportional to 128,040.82, 192,081.98 and 48,085.02 is: 72,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,040.82 : 192,081.98 = 48,085.02 : x
  2. Step 2: Convert to fraction form
    128,040.82/192,081.98 = 48,085.02/x
  3. Step 3: Cross multiply
    128,040.82x = 192,081.98 × 48,085.02
  4. Step 4: Simplify right side
    128,040.82x = 9,236,265,849.94
  5. Step 5: Solve for x
    x = 9,236,265,849.94/128,040.82
  6. Step 6: Final answer
    x = 72,135.32

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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.