Home / 130,814.82-196,148.40-45,385.61

Finding the Fourth Proportional to 130,814.82, 196,148.40 and 45,385.61

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Solution

The fourth proportional to 130,814.82, 196,148.40 and 45,385.61 is: 68,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,814.82 : 196,148.40 = 45,385.61 : x
  2. Step 2: Convert to fraction form
    130,814.82/196,148.40 = 45,385.61/x
  3. Step 3: Cross multiply
    130,814.82x = 196,148.40 × 45,385.61
  4. Step 4: Simplify right side
    130,814.82x = 8,902,313,803.78
  5. Step 5: Solve for x
    x = 8,902,313,803.78/130,814.82
  6. Step 6: Final answer
    x = 68,052.79

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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.