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Finding the Fourth Proportional to 102,755.50, 154,133.25 and 28,883.50

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Solution

The fourth proportional to 102,755.50, 154,133.25 and 28,883.50 is: 43,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,755.50 : 154,133.25 = 28,883.50 : x
  2. Step 2: Convert to fraction form
    102,755.50/154,133.25 = 28,883.50/x
  3. Step 3: Cross multiply
    102,755.50x = 154,133.25 × 28,883.50
  4. Step 4: Simplify right side
    102,755.50x = 4,451,907,726.38
  5. Step 5: Solve for x
    x = 4,451,907,726.38/102,755.50
  6. Step 6: Final answer
    x = 43,325.25

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1.5x scale

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.