Home / 130,769.16-180,464.94-74,189.04

Finding the Fourth Proportional to 130,769.16, 180,464.94 and 74,189.04

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Solution

The fourth proportional to 130,769.16, 180,464.94 and 74,189.04 is: 102,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,769.16 : 180,464.94 = 74,189.04 : x
  2. Step 2: Convert to fraction form
    130,769.16/180,464.94 = 74,189.04/x
  3. Step 3: Cross multiply
    130,769.16x = 180,464.94 × 74,189.04
  4. Step 4: Simplify right side
    130,769.16x = 13,388,520,652.26
  5. Step 5: Solve for x
    x = 13,388,520,652.26/130,769.16
  6. Step 6: Final answer
    x = 102,382.86

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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.