Home / 103,923.96-143,319.42-68,100.96

Finding the Fourth Proportional to 103,923.96, 143,319.42 and 68,100.96

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Solution

The fourth proportional to 103,923.96, 143,319.42 and 68,100.96 is: 93,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,923.96 : 143,319.42 = 68,100.96 : x
  2. Step 2: Convert to fraction form
    103,923.96/143,319.42 = 68,100.96/x
  3. Step 3: Cross multiply
    103,923.96x = 143,319.42 × 68,100.96
  4. Step 4: Simplify right side
    103,923.96x = 9,760,190,088.64
  5. Step 5: Solve for x
    x = 9,760,190,088.64/103,923.96
  6. Step 6: Final answer
    x = 93,916.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.