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Finding the Fourth Proportional to 101,456.58, 140,058.90 and 67,521.54

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Solution

The fourth proportional to 101,456.58, 140,058.90 and 67,521.54 is: 93,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,456.58 : 140,058.90 = 67,521.54 : x
  2. Step 2: Convert to fraction form
    101,456.58/140,058.90 = 67,521.54/x
  3. Step 3: Cross multiply
    101,456.58x = 140,058.90 × 67,521.54
  4. Step 4: Simplify right side
    101,456.58x = 9,456,992,618.71
  5. Step 5: Solve for x
    x = 9,456,992,618.71/101,456.58
  6. Step 6: Final answer
    x = 93,212.22

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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.