Home / 130,796.43-180,495.68-76,359.03

Finding the Fourth Proportional to 130,796.43, 180,495.68 and 76,359.03

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Solution

The fourth proportional to 130,796.43, 180,495.68 and 76,359.03 is: 105,373.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,796.43 : 180,495.68 = 76,359.03 : x
  2. Step 2: Convert to fraction form
    130,796.43/180,495.68 = 76,359.03/x
  3. Step 3: Cross multiply
    130,796.43x = 180,495.68 × 76,359.03
  4. Step 4: Simplify right side
    130,796.43x = 13,782,474,662.20
  5. Step 5: Solve for x
    x = 13,782,474,662.20/130,796.43
  6. Step 6: Final answer
    x = 105,373.48

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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.