Home / 100,166.14-138,235.94-57,727.41

Finding the Fourth Proportional to 100,166.14, 138,235.94 and 57,727.41

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Solution

The fourth proportional to 100,166.14, 138,235.94 and 57,727.41 is: 79,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,166.14 : 138,235.94 = 57,727.41 : x
  2. Step 2: Convert to fraction form
    100,166.14/138,235.94 = 57,727.41/x
  3. Step 3: Cross multiply
    100,166.14x = 138,235.94 × 57,727.41
  4. Step 4: Simplify right side
    100,166.14x = 7,980,001,805.30
  5. Step 5: Solve for x
    x = 7,980,001,805.30/100,166.14
  6. Step 6: Final answer
    x = 79,667.66

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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.