Home / 103,776.28-143,214.78-61,371.16

Finding the Fourth Proportional to 103,776.28, 143,214.78 and 61,371.16

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Solution

The fourth proportional to 103,776.28, 143,214.78 and 61,371.16 is: 84,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,776.28 : 143,214.78 = 61,371.16 : x
  2. Step 2: Convert to fraction form
    103,776.28/143,214.78 = 61,371.16/x
  3. Step 3: Cross multiply
    103,776.28x = 143,214.78 × 61,371.16
  4. Step 4: Simplify right side
    103,776.28x = 8,789,257,177.74
  5. Step 5: Solve for x
    x = 8,789,257,177.74/103,776.28
  6. Step 6: Final answer
    x = 84,694.28

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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.