Home / 130,932.72-196,409.21-42,188.99

Finding the Fourth Proportional to 130,932.72, 196,409.21 and 42,188.99

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Solution

The fourth proportional to 130,932.72, 196,409.21 and 42,188.99 is: 63,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,932.72 : 196,409.21 = 42,188.99 : x
  2. Step 2: Convert to fraction form
    130,932.72/196,409.21 = 42,188.99/x
  3. Step 3: Cross multiply
    130,932.72x = 196,409.21 × 42,188.99
  4. Step 4: Simplify right side
    130,932.72x = 8,286,305,003.61
  5. Step 5: Solve for x
    x = 8,286,305,003.61/130,932.72
  6. Step 6: Final answer
    x = 63,286.74

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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.