Home / 103,839.92-143,289.24-60,812.72

Finding the Fourth Proportional to 103,839.92, 143,289.24 and 60,812.72

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Solution

The fourth proportional to 103,839.92, 143,289.24 and 60,812.72 is: 83,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,839.92 : 143,289.24 = 60,812.72 : x
  2. Step 2: Convert to fraction form
    103,839.92/143,289.24 = 60,812.72/x
  3. Step 3: Cross multiply
    103,839.92x = 143,289.24 × 60,812.72
  4. Step 4: Simplify right side
    103,839.92x = 8,713,808,431.13
  5. Step 5: Solve for x
    x = 8,713,808,431.13/103,839.92
  6. Step 6: Final answer
    x = 83,915.79

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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.