Home / 137,412.14-189,626.45-76,982.59

Finding the Fourth Proportional to 137,412.14, 189,626.45 and 76,982.59

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Solution

The fourth proportional to 137,412.14, 189,626.45 and 76,982.59 is: 106,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,412.14 : 189,626.45 = 76,982.59 : x
  2. Step 2: Convert to fraction form
    137,412.14/189,626.45 = 76,982.59/x
  3. Step 3: Cross multiply
    137,412.14x = 189,626.45 × 76,982.59
  4. Step 4: Simplify right side
    137,412.14x = 14,597,934,394.53
  5. Step 5: Solve for x
    x = 14,597,934,394.53/137,412.14
  6. Step 6: Final answer
    x = 106,234.68

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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.