Home / 111,173.04-153,445.80-68,706

Finding the Fourth Proportional to 111,173.04, 153,445.80 and 68,706

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Solution

The fourth proportional to 111,173.04, 153,445.80 and 68,706 is: 94,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,173.04 : 153,445.80 = 68,706 : x
  2. Step 2: Convert to fraction form
    111,173.04/153,445.80 = 68,706/x
  3. Step 3: Cross multiply
    111,173.04x = 153,445.80 × 68,706
  4. Step 4: Simplify right side
    111,173.04x = 10,542,647,134.80
  5. Step 5: Solve for x
    x = 10,542,647,134.80/111,173.04
  6. Step 6: Final answer
    x = 94,830.97

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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.