Home / 129,114.78-193,077.62-122,816.22

Finding the Fourth Proportional to 129,114.78, 193,077.62 and 122,816.22

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Solution

The fourth proportional to 129,114.78, 193,077.62 and 122,816.22 is: 183,658.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,114.78 : 193,077.62 = 122,816.22 : x
  2. Step 2: Convert to fraction form
    129,114.78/193,077.62 = 122,816.22/x
  3. Step 3: Cross multiply
    129,114.78x = 193,077.62 × 122,816.22
  4. Step 4: Simplify right side
    129,114.78x = 23,713,063,455.00
  5. Step 5: Solve for x
    x = 23,713,063,455.00/129,114.78
  6. Step 6: Final answer
    x = 183,658.78

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1.5x scale

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.