Home / 130,719.48-180,382.30-73,350.96

Finding the Fourth Proportional to 130,719.48, 180,382.30 and 73,350.96

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Solution

The fourth proportional to 130,719.48, 180,382.30 and 73,350.96 is: 101,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,719.48 : 180,382.30 = 73,350.96 : x
  2. Step 2: Convert to fraction form
    130,719.48/180,382.30 = 73,350.96/x
  3. Step 3: Cross multiply
    130,719.48x = 180,382.30 × 73,350.96
  4. Step 4: Simplify right side
    130,719.48x = 13,231,214,872.01
  5. Step 5: Solve for x
    x = 13,231,214,872.01/130,719.48
  6. Step 6: Final answer
    x = 101,218.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.