Home / 189,784.10-284,493.90-109,739.90

Finding the Fourth Proportional to 189,784.10, 284,493.90 and 109,739.90

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Solution

The fourth proportional to 189,784.10, 284,493.90 and 109,739.90 is: 164,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,784.10 : 284,493.90 = 109,739.90 : x
  2. Step 2: Convert to fraction form
    189,784.10/284,493.90 = 109,739.90/x
  3. Step 3: Cross multiply
    189,784.10x = 284,493.90 × 109,739.90
  4. Step 4: Simplify right side
    189,784.10x = 31,220,332,136.61
  5. Step 5: Solve for x
    x = 31,220,332,136.61/189,784.10
  6. Step 6: Final answer
    x = 164,504.47

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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.