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Finding the Fourth Proportional to 138,333.44, 190,844.16 and 88,023.04

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Solution

The fourth proportional to 138,333.44, 190,844.16 and 88,023.04 is: 121,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,333.44 : 190,844.16 = 88,023.04 : x
  2. Step 2: Convert to fraction form
    138,333.44/190,844.16 = 88,023.04/x
  3. Step 3: Cross multiply
    138,333.44x = 190,844.16 × 88,023.04
  4. Step 4: Simplify right side
    138,333.44x = 16,798,683,129.45
  5. Step 5: Solve for x
    x = 16,798,683,129.45/138,333.44
  6. Step 6: Final answer
    x = 121,436.17

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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.