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Finding the Fourth Proportional to 101,888.87, 140,607.14 and 63,670.61

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Solution

The fourth proportional to 101,888.87, 140,607.14 and 63,670.61 is: 87,865.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,888.87 : 140,607.14 = 63,670.61 : x
  2. Step 2: Convert to fraction form
    101,888.87/140,607.14 = 63,670.61/x
  3. Step 3: Cross multiply
    101,888.87x = 140,607.14 × 63,670.61
  4. Step 4: Simplify right side
    101,888.87x = 8,952,542,374.16
  5. Step 5: Solve for x
    x = 8,952,542,374.16/101,888.87
  6. Step 6: Final answer
    x = 87,865.75

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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.