Home / 130,605.06-195,921-45,215.79

Finding the Fourth Proportional to 130,605.06, 195,921 and 45,215.79

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Solution

The fourth proportional to 130,605.06, 195,921 and 45,215.79 is: 67,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,605.06 : 195,921 = 45,215.79 : x
  2. Step 2: Convert to fraction form
    130,605.06/195,921 = 45,215.79/x
  3. Step 3: Cross multiply
    130,605.06x = 195,921 × 45,215.79
  4. Step 4: Simplify right side
    130,605.06x = 8,858,722,792.59
  5. Step 5: Solve for x
    x = 8,858,722,792.59/130,605.06
  6. Step 6: Final answer
    x = 67,828.33

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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.