Home / 130,942.05-180,695.18-80,040.03

Finding the Fourth Proportional to 130,942.05, 180,695.18 and 80,040.03

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Solution

The fourth proportional to 130,942.05, 180,695.18 and 80,040.03 is: 110,452.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,942.05 : 180,695.18 = 80,040.03 : x
  2. Step 2: Convert to fraction form
    130,942.05/180,695.18 = 80,040.03/x
  3. Step 3: Cross multiply
    130,942.05x = 180,695.18 × 80,040.03
  4. Step 4: Simplify right side
    130,942.05x = 14,462,847,227.86
  5. Step 5: Solve for x
    x = 14,462,847,227.86/130,942.05
  6. Step 6: Final answer
    x = 110,452.27

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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.