Home / 130,172.63-195,184.22-51,243.80

Finding the Fourth Proportional to 130,172.63, 195,184.22 and 51,243.80

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Solution

The fourth proportional to 130,172.63, 195,184.22 and 51,243.80 is: 76,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,172.63 : 195,184.22 = 51,243.80 : x
  2. Step 2: Convert to fraction form
    130,172.63/195,184.22 = 51,243.80/x
  3. Step 3: Cross multiply
    130,172.63x = 195,184.22 × 51,243.80
  4. Step 4: Simplify right side
    130,172.63x = 10,001,979,900.70
  5. Step 5: Solve for x
    x = 10,001,979,900.70/130,172.63
  6. Step 6: Final answer
    x = 76,836.28

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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.