Home / 130,819.80-195,792.30-91,453.80

Finding the Fourth Proportional to 130,819.80, 195,792.30 and 91,453.80

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Solution

The fourth proportional to 130,819.80, 195,792.30 and 91,453.80 is: 136,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,819.80 : 195,792.30 = 91,453.80 : x
  2. Step 2: Convert to fraction form
    130,819.80/195,792.30 = 91,453.80/x
  3. Step 3: Cross multiply
    130,819.80x = 195,792.30 × 91,453.80
  4. Step 4: Simplify right side
    130,819.80x = 17,905,949,845.74
  5. Step 5: Solve for x
    x = 17,905,949,845.74/130,819.80
  6. Step 6: Final answer
    x = 136,874.92

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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.