Home / 126,068.58-189,098.73-51,186.87

Finding the Fourth Proportional to 126,068.58, 189,098.73 and 51,186.87

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Solution

The fourth proportional to 126,068.58, 189,098.73 and 51,186.87 is: 76,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,068.58 : 189,098.73 = 51,186.87 : x
  2. Step 2: Convert to fraction form
    126,068.58/189,098.73 = 51,186.87/x
  3. Step 3: Cross multiply
    126,068.58x = 189,098.73 × 51,186.87
  4. Step 4: Simplify right side
    126,068.58x = 9,679,372,109.68
  5. Step 5: Solve for x
    x = 9,679,372,109.68/126,068.58
  6. Step 6: Final answer
    x = 76,778.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.