Home / 126,123.96-189,180.47-31,352.14

Finding the Fourth Proportional to 126,123.96, 189,180.47 and 31,352.14

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Solution

The fourth proportional to 126,123.96, 189,180.47 and 31,352.14 is: 47,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123.96 : 189,180.47 = 31,352.14 : x
  2. Step 2: Convert to fraction form
    126,123.96/189,180.47 = 31,352.14/x
  3. Step 3: Cross multiply
    126,123.96x = 189,180.47 × 31,352.14
  4. Step 4: Simplify right side
    126,123.96x = 5,931,211,634.80
  5. Step 5: Solve for x
    x = 5,931,211,634.80/126,123.96
  6. Step 6: Final answer
    x = 47,026.84

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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.