Home / 130,372.88-195,228.51-109,257.39

Finding the Fourth Proportional to 130,372.88, 195,228.51 and 109,257.39

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Solution

The fourth proportional to 130,372.88, 195,228.51 and 109,257.39 is: 163,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,372.88 : 195,228.51 = 109,257.39 : x
  2. Step 2: Convert to fraction form
    130,372.88/195,228.51 = 109,257.39/x
  3. Step 3: Cross multiply
    130,372.88x = 195,228.51 × 109,257.39
  4. Step 4: Simplify right side
    130,372.88x = 21,330,157,456.19
  5. Step 5: Solve for x
    x = 21,330,157,456.19/130,372.88
  6. Step 6: Final answer
    x = 163,608.86

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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.