Home / 118,795.41-163,937.79-65,083.86

Finding the Fourth Proportional to 118,795.41, 163,937.79 and 65,083.86

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Solution

The fourth proportional to 118,795.41, 163,937.79 and 65,083.86 is: 89,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,795.41 : 163,937.79 = 65,083.86 : x
  2. Step 2: Convert to fraction form
    118,795.41/163,937.79 = 65,083.86/x
  3. Step 3: Cross multiply
    118,795.41x = 163,937.79 × 65,083.86
  4. Step 4: Simplify right side
    118,795.41x = 10,669,704,173.07
  5. Step 5: Solve for x
    x = 10,669,704,173.07/118,795.41
  6. Step 6: Final answer
    x = 89,815.79

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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.