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Finding the Fourth Proportional to 101,870.20, 152,805.30 and 92,684.80

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Solution

The fourth proportional to 101,870.20, 152,805.30 and 92,684.80 is: 139,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,870.20 : 152,805.30 = 92,684.80 : x
  2. Step 2: Convert to fraction form
    101,870.20/152,805.30 = 92,684.80/x
  3. Step 3: Cross multiply
    101,870.20x = 152,805.30 × 92,684.80
  4. Step 4: Simplify right side
    101,870.20x = 14,162,728,669.44
  5. Step 5: Solve for x
    x = 14,162,728,669.44/101,870.20
  6. Step 6: Final answer
    x = 139,027.20

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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.