Home / 126,030.54-189,049.44-47,129.70

Finding the Fourth Proportional to 126,030.54, 189,049.44 and 47,129.70

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Solution

The fourth proportional to 126,030.54, 189,049.44 and 47,129.70 is: 70,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,030.54 : 189,049.44 = 47,129.70 : x
  2. Step 2: Convert to fraction form
    126,030.54/189,049.44 = 47,129.70/x
  3. Step 3: Cross multiply
    126,030.54x = 189,049.44 × 47,129.70
  4. Step 4: Simplify right side
    126,030.54x = 8,909,843,392.37
  5. Step 5: Solve for x
    x = 8,909,843,392.37/126,030.54
  6. Step 6: Final answer
    x = 70,695.91

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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.