Home / 130,832.55-195,860.03-86,509.35

Finding the Fourth Proportional to 130,832.55, 195,860.03 and 86,509.35

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Solution

The fourth proportional to 130,832.55, 195,860.03 and 86,509.35 is: 129,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,832.55 : 195,860.03 = 86,509.35 : x
  2. Step 2: Convert to fraction form
    130,832.55/195,860.03 = 86,509.35/x
  3. Step 3: Cross multiply
    130,832.55x = 195,860.03 × 86,509.35
  4. Step 4: Simplify right side
    130,832.55x = 16,943,723,453.73
  5. Step 5: Solve for x
    x = 16,943,723,453.73/130,832.55
  6. Step 6: Final answer
    x = 129,506.94

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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.