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Finding the Fourth Proportional to 144,190.54, 197,537.72 and 138,799.72

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Solution

The fourth proportional to 144,190.54, 197,537.72 and 138,799.72 is: 190,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,190.54 : 197,537.72 = 138,799.72 : x
  2. Step 2: Convert to fraction form
    144,190.54/197,537.72 = 138,799.72/x
  3. Step 3: Cross multiply
    144,190.54x = 197,537.72 × 138,799.72
  4. Step 4: Simplify right side
    144,190.54x = 27,418,180,225.44
  5. Step 5: Solve for x
    x = 27,418,180,225.44/144,190.54
  6. Step 6: Final answer
    x = 190,152.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.