Home / 104,119.14-143,545.45-78,167.82

Finding the Fourth Proportional to 104,119.14, 143,545.45 and 78,167.82

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Solution

The fourth proportional to 104,119.14, 143,545.45 and 78,167.82 is: 107,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,119.14 : 143,545.45 = 78,167.82 : x
  2. Step 2: Convert to fraction form
    104,119.14/143,545.45 = 78,167.82/x
  3. Step 3: Cross multiply
    104,119.14x = 143,545.45 × 78,167.82
  4. Step 4: Simplify right side
    104,119.14x = 11,220,635,514.77
  5. Step 5: Solve for x
    x = 11,220,635,514.77/104,119.14
  6. Step 6: Final answer
    x = 107,767.27

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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.