Home / 135,448.52-186,856.92-87,717.24

Finding the Fourth Proportional to 135,448.52, 186,856.92 and 87,717.24

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Solution

The fourth proportional to 135,448.52, 186,856.92 and 87,717.24 is: 121,009.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,448.52 : 186,856.92 = 87,717.24 : x
  2. Step 2: Convert to fraction form
    135,448.52/186,856.92 = 87,717.24/x
  3. Step 3: Cross multiply
    135,448.52x = 186,856.92 × 87,717.24
  4. Step 4: Simplify right side
    135,448.52x = 16,390,573,297.30
  5. Step 5: Solve for x
    x = 16,390,573,297.30/135,448.52
  6. Step 6: Final answer
    x = 121,009.62

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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.