Home / 130,172.13-195,183.46-51,243.30

Finding the Fourth Proportional to 130,172.13, 195,183.46 and 51,243.30

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Solution

The fourth proportional to 130,172.13, 195,183.46 and 51,243.30 is: 76,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,172.13 : 195,183.46 = 51,243.30 : x
  2. Step 2: Convert to fraction form
    130,172.13/195,183.46 = 51,243.30/x
  3. Step 3: Cross multiply
    130,172.13x = 195,183.46 × 51,243.30
  4. Step 4: Simplify right side
    130,172.13x = 10,001,844,595.82
  5. Step 5: Solve for x
    x = 10,001,844,595.82/130,172.13
  6. Step 6: Final answer
    x = 76,835.53

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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.