Home / 130,934.46-196,487.79-71,811.63

Finding the Fourth Proportional to 130,934.46, 196,487.79 and 71,811.63

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Solution

The fourth proportional to 130,934.46, 196,487.79 and 71,811.63 is: 107,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,934.46 : 196,487.79 = 71,811.63 : x
  2. Step 2: Convert to fraction form
    130,934.46/196,487.79 = 71,811.63/x
  3. Step 3: Cross multiply
    130,934.46x = 196,487.79 × 71,811.63
  4. Step 4: Simplify right side
    130,934.46x = 14,110,108,475.00
  5. Step 5: Solve for x
    x = 14,110,108,475.00/130,934.46
  6. Step 6: Final answer
    x = 107,764.67

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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.