Home / 128,910.69-193,319.70-44,648.16

Finding the Fourth Proportional to 128,910.69, 193,319.70 and 44,648.16

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Solution

The fourth proportional to 128,910.69, 193,319.70 and 44,648.16 is: 66,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,910.69 : 193,319.70 = 44,648.16 : x
  2. Step 2: Convert to fraction form
    128,910.69/193,319.70 = 44,648.16/x
  3. Step 3: Cross multiply
    128,910.69x = 193,319.70 × 44,648.16
  4. Step 4: Simplify right side
    128,910.69x = 8,631,368,896.75
  5. Step 5: Solve for x
    x = 8,631,368,896.75/128,910.69
  6. Step 6: Final answer
    x = 66,956.19

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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.