Home / 141,696.51-195,541.20-78,033.75

Finding the Fourth Proportional to 141,696.51, 195,541.20 and 78,033.75

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Solution

The fourth proportional to 141,696.51, 195,541.20 and 78,033.75 is: 107,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,696.51 : 195,541.20 = 78,033.75 : x
  2. Step 2: Convert to fraction form
    141,696.51/195,541.20 = 78,033.75/x
  3. Step 3: Cross multiply
    141,696.51x = 195,541.20 × 78,033.75
  4. Step 4: Simplify right side
    141,696.51x = 15,258,813,115.50
  5. Step 5: Solve for x
    x = 15,258,813,115.50/141,696.51
  6. Step 6: Final answer
    x = 107,686.58

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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.