Home / 118,911.14-164,099.22-71,166.50

Finding the Fourth Proportional to 118,911.14, 164,099.22 and 71,166.50

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Solution

The fourth proportional to 118,911.14, 164,099.22 and 71,166.50 is: 98,210.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,911.14 : 164,099.22 = 71,166.50 : x
  2. Step 2: Convert to fraction form
    118,911.14/164,099.22 = 71,166.50/x
  3. Step 3: Cross multiply
    118,911.14x = 164,099.22 × 71,166.50
  4. Step 4: Simplify right side
    118,911.14x = 11,678,367,140.13
  5. Step 5: Solve for x
    x = 11,678,367,140.13/118,911.14
  6. Step 6: Final answer
    x = 98,210.88

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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.