Home / 130,109.70-195,164.55-115,335.30

Finding the Fourth Proportional to 130,109.70, 195,164.55 and 115,335.30

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Solution

The fourth proportional to 130,109.70, 195,164.55 and 115,335.30 is: 173,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.70 : 195,164.55 = 115,335.30 : x
  2. Step 2: Convert to fraction form
    130,109.70/195,164.55 = 115,335.30/x
  3. Step 3: Cross multiply
    130,109.70x = 195,164.55 × 115,335.30
  4. Step 4: Simplify right side
    130,109.70x = 22,509,361,923.62
  5. Step 5: Solve for x
    x = 22,509,361,923.62/130,109.70
  6. Step 6: Final answer
    x = 173,002.95

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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.