Home / 130,540.80-195,834.96-86,204.64

Finding the Fourth Proportional to 130,540.80, 195,834.96 and 86,204.64

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Solution

The fourth proportional to 130,540.80, 195,834.96 and 86,204.64 is: 129,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,540.80 : 195,834.96 = 86,204.64 : x
  2. Step 2: Convert to fraction form
    130,540.80/195,834.96 = 86,204.64/x
  3. Step 3: Cross multiply
    130,540.80x = 195,834.96 × 86,204.64
  4. Step 4: Simplify right side
    130,540.80x = 16,881,882,226.21
  5. Step 5: Solve for x
    x = 16,881,882,226.21/130,540.80
  6. Step 6: Final answer
    x = 129,322.65

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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.