Home / 117,819.60-162,564.36-86,005.84

Finding the Fourth Proportional to 117,819.60, 162,564.36 and 86,005.84

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Solution

The fourth proportional to 117,819.60, 162,564.36 and 86,005.84 is: 118,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,819.60 : 162,564.36 = 86,005.84 : x
  2. Step 2: Convert to fraction form
    117,819.60/162,564.36 = 86,005.84/x
  3. Step 3: Cross multiply
    117,819.60x = 162,564.36 × 86,005.84
  4. Step 4: Simplify right side
    117,819.60x = 13,981,484,335.86
  5. Step 5: Solve for x
    x = 13,981,484,335.86/117,819.60
  6. Step 6: Final answer
    x = 118,668.58

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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.