Home / 92,940.93-138,637.23-83,971.80

Finding the Fourth Proportional to 92,940.93, 138,637.23 and 83,971.80

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Solution

The fourth proportional to 92,940.93, 138,637.23 and 83,971.80 is: 125,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,940.93 : 138,637.23 = 83,971.80 : x
  2. Step 2: Convert to fraction form
    92,940.93/138,637.23 = 83,971.80/x
  3. Step 3: Cross multiply
    92,940.93x = 138,637.23 × 83,971.80
  4. Step 4: Simplify right side
    92,940.93x = 11,641,617,435.22
  5. Step 5: Solve for x
    x = 11,641,617,435.22/92,940.93
  6. Step 6: Final answer
    x = 125,258.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.