Home / 137,877.06-190,342.90-92,792.04

Finding the Fourth Proportional to 137,877.06, 190,342.90 and 92,792.04

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Solution

The fourth proportional to 137,877.06, 190,342.90 and 92,792.04 is: 128,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,877.06 : 190,342.90 = 92,792.04 : x
  2. Step 2: Convert to fraction form
    137,877.06/190,342.90 = 92,792.04/x
  3. Step 3: Cross multiply
    137,877.06x = 190,342.90 × 92,792.04
  4. Step 4: Simplify right side
    137,877.06x = 17,662,305,990.52
  5. Step 5: Solve for x
    x = 17,662,305,990.52/137,877.06
  6. Step 6: Final answer
    x = 128,101.85

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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.