Home / 189,743.40-284,615.10-109,917.90

Finding the Fourth Proportional to 189,743.40, 284,615.10 and 109,917.90

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Solution

The fourth proportional to 189,743.40, 284,615.10 and 109,917.90 is: 164,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,743.40 : 284,615.10 = 109,917.90 : x
  2. Step 2: Convert to fraction form
    189,743.40/284,615.10 = 109,917.90/x
  3. Step 3: Cross multiply
    189,743.40x = 284,615.10 × 109,917.90
  4. Step 4: Simplify right side
    189,743.40x = 31,284,294,100.29
  5. Step 5: Solve for x
    x = 31,284,294,100.29/189,743.40
  6. Step 6: Final answer
    x = 164,876.85

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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.