Home / 189,829.32-261,920.94-113,333.52

Finding the Fourth Proportional to 189,829.32, 261,920.94 and 113,333.52

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Solution

The fourth proportional to 189,829.32, 261,920.94 and 113,333.52 is: 156,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,829.32 : 261,920.94 = 113,333.52 : x
  2. Step 2: Convert to fraction form
    189,829.32/261,920.94 = 113,333.52/x
  3. Step 3: Cross multiply
    189,829.32x = 261,920.94 × 113,333.52
  4. Step 4: Simplify right side
    189,829.32x = 29,684,422,091.91
  5. Step 5: Solve for x
    x = 29,684,422,091.91/189,829.32
  6. Step 6: Final answer
    x = 156,374.27

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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.