Home / 117,584.87-162,280.57-65,915.92

Finding the Fourth Proportional to 117,584.87, 162,280.57 and 65,915.92

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Solution

The fourth proportional to 117,584.87, 162,280.57 and 65,915.92 is: 90,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,584.87 : 162,280.57 = 65,915.92 : x
  2. Step 2: Convert to fraction form
    117,584.87/162,280.57 = 65,915.92/x
  3. Step 3: Cross multiply
    117,584.87x = 162,280.57 × 65,915.92
  4. Step 4: Simplify right side
    117,584.87x = 10,696,872,258.27
  5. Step 5: Solve for x
    x = 10,696,872,258.27/117,584.87
  6. Step 6: Final answer
    x = 90,971.51

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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.