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Finding the Fourth Proportional to 137,021.58, 205,532.10 and 51,648.39

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Solution

The fourth proportional to 137,021.58, 205,532.10 and 51,648.39 is: 77,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,021.58 : 205,532.10 = 51,648.39 : x
  2. Step 2: Convert to fraction form
    137,021.58/205,532.10 = 51,648.39/x
  3. Step 3: Cross multiply
    137,021.58x = 205,532.10 × 51,648.39
  4. Step 4: Simplify right side
    137,021.58x = 10,615,402,058.32
  5. Step 5: Solve for x
    x = 10,615,402,058.32/137,021.58
  6. Step 6: Final answer
    x = 77,472.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.