Home / 134,138.80-201,208.20-45,395.20

Finding the Fourth Proportional to 134,138.80, 201,208.20 and 45,395.20

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Solution

The fourth proportional to 134,138.80, 201,208.20 and 45,395.20 is: 68,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,138.80 : 201,208.20 = 45,395.20 : x
  2. Step 2: Convert to fraction form
    134,138.80/201,208.20 = 45,395.20/x
  3. Step 3: Cross multiply
    134,138.80x = 201,208.20 × 45,395.20
  4. Step 4: Simplify right side
    134,138.80x = 9,133,886,480.64
  5. Step 5: Solve for x
    x = 9,133,886,480.64/134,138.80
  6. Step 6: Final answer
    x = 68,092.80

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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.