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Finding the Fourth Proportional to 101,582.60, 140,183.86 and 56,870.92

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Solution

The fourth proportional to 101,582.60, 140,183.86 and 56,870.92 is: 78,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,582.60 : 140,183.86 = 56,870.92 : x
  2. Step 2: Convert to fraction form
    101,582.60/140,183.86 = 56,870.92/x
  3. Step 3: Cross multiply
    101,582.60x = 140,183.86 × 56,870.92
  4. Step 4: Simplify right side
    101,582.60x = 7,972,385,087.35
  5. Step 5: Solve for x
    x = 7,972,385,087.35/101,582.60
  6. Step 6: Final answer
    x = 78,481.80

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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.