Home / 130,420.29-195,623.97-76,415.57

Finding the Fourth Proportional to 130,420.29, 195,623.97 and 76,415.57

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Solution

The fourth proportional to 130,420.29, 195,623.97 and 76,415.57 is: 114,619.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,420.29 : 195,623.97 = 76,415.57 : x
  2. Step 2: Convert to fraction form
    130,420.29/195,623.97 = 76,415.57/x
  3. Step 3: Cross multiply
    130,420.29x = 195,623.97 × 76,415.57
  4. Step 4: Simplify right side
    130,420.29x = 14,948,716,195.09
  5. Step 5: Solve for x
    x = 14,948,716,195.09/130,420.29
  6. Step 6: Final answer
    x = 114,619.56

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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.