Home / 189,904.80-284,857.20-122,982.60

Finding the Fourth Proportional to 189,904.80, 284,857.20 and 122,982.60

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Solution

The fourth proportional to 189,904.80, 284,857.20 and 122,982.60 is: 184,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,904.80 : 284,857.20 = 122,982.60 : x
  2. Step 2: Convert to fraction form
    189,904.80/284,857.20 = 122,982.60/x
  3. Step 3: Cross multiply
    189,904.80x = 284,857.20 × 122,982.60
  4. Step 4: Simplify right side
    189,904.80x = 35,032,479,084.72
  5. Step 5: Solve for x
    x = 35,032,479,084.72/189,904.80
  6. Step 6: Final answer
    x = 184,473.90

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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.