Home / 130,186.68-195,147.90-51,356.76

Finding the Fourth Proportional to 130,186.68, 195,147.90 and 51,356.76

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Solution

The fourth proportional to 130,186.68, 195,147.90 and 51,356.76 is: 76,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,186.68 : 195,147.90 = 51,356.76 : x
  2. Step 2: Convert to fraction form
    130,186.68/195,147.90 = 51,356.76/x
  3. Step 3: Cross multiply
    130,186.68x = 195,147.90 × 51,356.76
  4. Step 4: Simplify right side
    130,186.68x = 10,022,163,864.80
  5. Step 5: Solve for x
    x = 10,022,163,864.80/130,186.68
  6. Step 6: Final answer
    x = 76,983.02

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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.