Home / 189,255.24-284,079.69-139,391.64

Finding the Fourth Proportional to 189,255.24, 284,079.69 and 139,391.64

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Solution

The fourth proportional to 189,255.24, 284,079.69 and 139,391.64 is: 209,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,255.24 : 284,079.69 = 139,391.64 : x
  2. Step 2: Convert to fraction form
    189,255.24/284,079.69 = 139,391.64/x
  3. Step 3: Cross multiply
    189,255.24x = 284,079.69 × 139,391.64
  4. Step 4: Simplify right side
    189,255.24x = 39,598,333,879.79
  5. Step 5: Solve for x
    x = 39,598,333,879.79/189,255.24
  6. Step 6: Final answer
    x = 209,232.43

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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.