Home / 191,561.36-264,344.32-105,517.50

Finding the Fourth Proportional to 191,561.36, 264,344.32 and 105,517.50

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Solution

The fourth proportional to 191,561.36, 264,344.32 and 105,517.50 is: 145,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,561.36 : 264,344.32 = 105,517.50 : x
  2. Step 2: Convert to fraction form
    191,561.36/264,344.32 = 105,517.50/x
  3. Step 3: Cross multiply
    191,561.36x = 264,344.32 × 105,517.50
  4. Step 4: Simplify right side
    191,561.36x = 27,892,951,785.60
  5. Step 5: Solve for x
    x = 27,892,951,785.60/191,561.36
  6. Step 6: Final answer
    x = 145,608.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.