Home / 137,838.28-190,205.22-83,410.84

Finding the Fourth Proportional to 137,838.28, 190,205.22 and 83,410.84

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Solution

The fourth proportional to 137,838.28, 190,205.22 and 83,410.84 is: 115,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,838.28 : 190,205.22 = 83,410.84 : x
  2. Step 2: Convert to fraction form
    137,838.28/190,205.22 = 83,410.84/x
  3. Step 3: Cross multiply
    137,838.28x = 190,205.22 × 83,410.84
  4. Step 4: Simplify right side
    137,838.28x = 15,865,177,172.58
  5. Step 5: Solve for x
    x = 15,865,177,172.58/137,838.28
  6. Step 6: Final answer
    x = 115,099.94

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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.