Home / 116,728.29-175,249.86-74,690.43

Finding the Fourth Proportional to 116,728.29, 175,249.86 and 74,690.43

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Solution

The fourth proportional to 116,728.29, 175,249.86 and 74,690.43 is: 112,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,728.29 : 175,249.86 = 74,690.43 : x
  2. Step 2: Convert to fraction form
    116,728.29/175,249.86 = 74,690.43/x
  3. Step 3: Cross multiply
    116,728.29x = 175,249.86 × 74,690.43
  4. Step 4: Simplify right side
    116,728.29x = 13,089,487,400.84
  5. Step 5: Solve for x
    x = 13,089,487,400.84/116,728.29
  6. Step 6: Final answer
    x = 112,136.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.