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Finding the Fourth Proportional to 126,548.34, 189,750.62 and 51,580.68

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Solution

The fourth proportional to 126,548.34, 189,750.62 and 51,580.68 is: 77,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,548.34 : 189,750.62 = 51,580.68 : x
  2. Step 2: Convert to fraction form
    126,548.34/189,750.62 = 51,580.68/x
  3. Step 3: Cross multiply
    126,548.34x = 189,750.62 × 51,580.68
  4. Step 4: Simplify right side
    126,548.34x = 9,787,464,803.37
  5. Step 5: Solve for x
    x = 9,787,464,803.37/126,548.34
  6. Step 6: Final answer
    x = 77,341.71

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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.