Home / 138,238.22-190,827.60-92,942.49

Finding the Fourth Proportional to 138,238.22, 190,827.60 and 92,942.49

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Solution

The fourth proportional to 138,238.22, 190,827.60 and 92,942.49 is: 128,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,238.22 : 190,827.60 = 92,942.49 : x
  2. Step 2: Convert to fraction form
    138,238.22/190,827.60 = 92,942.49/x
  3. Step 3: Cross multiply
    138,238.22x = 190,827.60 × 92,942.49
  4. Step 4: Simplify right side
    138,238.22x = 17,735,991,598.39
  5. Step 5: Solve for x
    x = 17,735,991,598.39/138,238.22
  6. Step 6: Final answer
    x = 128,300.20

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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.