Home / 189,825.18-261,635.28-173,736.72

Finding the Fourth Proportional to 189,825.18, 261,635.28 and 173,736.72

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Solution

The fourth proportional to 189,825.18, 261,635.28 and 173,736.72 is: 239,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,825.18 : 261,635.28 = 173,736.72 : x
  2. Step 2: Convert to fraction form
    189,825.18/261,635.28 = 173,736.72/x
  3. Step 3: Cross multiply
    189,825.18x = 261,635.28 × 173,736.72
  4. Step 4: Simplify right side
    189,825.18x = 45,455,655,383.48
  5. Step 5: Solve for x
    x = 45,455,655,383.48/189,825.18
  6. Step 6: Final answer
    x = 239,460.62

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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.