Home / 118,913.40-164,095.56-71,138.52

Finding the Fourth Proportional to 118,913.40, 164,095.56 and 71,138.52

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Solution

The fourth proportional to 118,913.40, 164,095.56 and 71,138.52 is: 98,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,913.40 : 164,095.56 = 71,138.52 : x
  2. Step 2: Convert to fraction form
    118,913.40/164,095.56 = 71,138.52/x
  3. Step 3: Cross multiply
    118,913.40x = 164,095.56 × 71,138.52
  4. Step 4: Simplify right side
    118,913.40x = 11,673,515,276.97
  5. Step 5: Solve for x
    x = 11,673,515,276.97/118,913.40
  6. Step 6: Final answer
    x = 98,168.21

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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.