Home / 104,282.29-143,805.94-78,502.58

Finding the Fourth Proportional to 104,282.29, 143,805.94 and 78,502.58

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Solution

The fourth proportional to 104,282.29, 143,805.94 and 78,502.58 is: 108,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,282.29 : 143,805.94 = 78,502.58 : x
  2. Step 2: Convert to fraction form
    104,282.29/143,805.94 = 78,502.58/x
  3. Step 3: Cross multiply
    104,282.29x = 143,805.94 × 78,502.58
  4. Step 4: Simplify right side
    104,282.29x = 11,289,137,309.33
  5. Step 5: Solve for x
    x = 11,289,137,309.33/104,282.29
  6. Step 6: Final answer
    x = 108,255.56

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1.5x scale

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.