Home / 118,834.41-163,930.14-80,581.02

Finding the Fourth Proportional to 118,834.41, 163,930.14 and 80,581.02

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Solution

The fourth proportional to 118,834.41, 163,930.14 and 80,581.02 is: 111,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,834.41 : 163,930.14 = 80,581.02 : x
  2. Step 2: Convert to fraction form
    118,834.41/163,930.14 = 80,581.02/x
  3. Step 3: Cross multiply
    118,834.41x = 163,930.14 × 80,581.02
  4. Step 4: Simplify right side
    118,834.41x = 13,209,657,889.94
  5. Step 5: Solve for x
    x = 13,209,657,889.94/118,834.41
  6. Step 6: Final answer
    x = 111,160.21

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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.