Home / 130,976.64-196,551-71,853.84

Finding the Fourth Proportional to 130,976.64, 196,551 and 71,853.84

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Solution

The fourth proportional to 130,976.64, 196,551 and 71,853.84 is: 107,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,976.64 : 196,551 = 71,853.84 : x
  2. Step 2: Convert to fraction form
    130,976.64/196,551 = 71,853.84/x
  3. Step 3: Cross multiply
    130,976.64x = 196,551 × 71,853.84
  4. Step 4: Simplify right side
    130,976.64x = 14,122,944,105.84
  5. Step 5: Solve for x
    x = 14,122,944,105.84/130,976.64
  6. Step 6: Final answer
    x = 107,827.96

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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.