Home / 128,603.28-192,917.78-44,352.35

Finding the Fourth Proportional to 128,603.28, 192,917.78 and 44,352.35

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Solution

The fourth proportional to 128,603.28, 192,917.78 and 44,352.35 is: 66,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,603.28 : 192,917.78 = 44,352.35 : x
  2. Step 2: Convert to fraction form
    128,603.28/192,917.78 = 44,352.35/x
  3. Step 3: Cross multiply
    128,603.28x = 192,917.78 × 44,352.35
  4. Step 4: Simplify right side
    128,603.28x = 8,556,356,899.78
  5. Step 5: Solve for x
    x = 8,556,356,899.78/128,603.28
  6. Step 6: Final answer
    x = 66,532.96

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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.