Home / 130,126.40-195,211.20-51,243.20

Finding the Fourth Proportional to 130,126.40, 195,211.20 and 51,243.20

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Solution

The fourth proportional to 130,126.40, 195,211.20 and 51,243.20 is: 76,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,126.40 : 195,211.20 = 51,243.20 : x
  2. Step 2: Convert to fraction form
    130,126.40/195,211.20 = 51,243.20/x
  3. Step 3: Cross multiply
    130,126.40x = 195,211.20 × 51,243.20
  4. Step 4: Simplify right side
    130,126.40x = 10,003,246,563.84
  5. Step 5: Solve for x
    x = 10,003,246,563.84/130,126.40
  6. Step 6: Final answer
    x = 76,873.31

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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.