Home / 165,784.45-248,750.18-86,879.92

Finding the Fourth Proportional to 165,784.45, 248,750.18 and 86,879.92

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Solution

The fourth proportional to 165,784.45, 248,750.18 and 86,879.92 is: 130,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,784.45 : 248,750.18 = 86,879.92 : x
  2. Step 2: Convert to fraction form
    165,784.45/248,750.18 = 86,879.92/x
  3. Step 3: Cross multiply
    165,784.45x = 248,750.18 × 86,879.92
  4. Step 4: Simplify right side
    165,784.45x = 21,611,395,738.39
  5. Step 5: Solve for x
    x = 21,611,395,738.39/165,784.45
  6. Step 6: Final answer
    x = 130,358.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.