Home / 112,684.62-155,501.19-61,696.08

Finding the Fourth Proportional to 112,684.62, 155,501.19 and 61,696.08

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Solution

The fourth proportional to 112,684.62, 155,501.19 and 61,696.08 is: 85,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,684.62 : 155,501.19 = 61,696.08 : x
  2. Step 2: Convert to fraction form
    112,684.62/155,501.19 = 61,696.08/x
  3. Step 3: Cross multiply
    112,684.62x = 155,501.19 × 61,696.08
  4. Step 4: Simplify right side
    112,684.62x = 9,593,813,858.34
  5. Step 5: Solve for x
    x = 9,593,813,858.34/112,684.62
  6. Step 6: Final answer
    x = 85,138.63

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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.