Home / 130,579.01-195,868.58-86,195.39

Finding the Fourth Proportional to 130,579.01, 195,868.58 and 86,195.39

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Solution

The fourth proportional to 130,579.01, 195,868.58 and 86,195.39 is: 129,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,579.01 : 195,868.58 = 86,195.39 : x
  2. Step 2: Convert to fraction form
    130,579.01/195,868.58 = 86,195.39/x
  3. Step 3: Cross multiply
    130,579.01x = 195,868.58 × 86,195.39
  4. Step 4: Simplify right side
    130,579.01x = 16,882,969,347.01
  5. Step 5: Solve for x
    x = 16,882,969,347.01/130,579.01
  6. Step 6: Final answer
    x = 129,293.13

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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.