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Finding the Fourth Proportional to 134,856.36, 186,171.72 and 98,517

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Solution

The fourth proportional to 134,856.36, 186,171.72 and 98,517 is: 136,004.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,856.36 : 186,171.72 = 98,517 : x
  2. Step 2: Convert to fraction form
    134,856.36/186,171.72 = 98,517/x
  3. Step 3: Cross multiply
    134,856.36x = 186,171.72 × 98,517
  4. Step 4: Simplify right side
    134,856.36x = 18,341,079,339.24
  5. Step 5: Solve for x
    x = 18,341,079,339.24/134,856.36
  6. Step 6: Final answer
    x = 136,004.56

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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.