Home / 130,022.40-195,027.12-45,786.72

Finding the Fourth Proportional to 130,022.40, 195,027.12 and 45,786.72

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Solution

The fourth proportional to 130,022.40, 195,027.12 and 45,786.72 is: 68,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,022.40 : 195,027.12 = 45,786.72 : x
  2. Step 2: Convert to fraction form
    130,022.40/195,027.12 = 45,786.72/x
  3. Step 3: Cross multiply
    130,022.40x = 195,027.12 × 45,786.72
  4. Step 4: Simplify right side
    130,022.40x = 8,929,652,135.85
  5. Step 5: Solve for x
    x = 8,929,652,135.85/130,022.40
  6. Step 6: Final answer
    x = 68,677.80

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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.