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Finding the Fourth Proportional to 101,887.08, 152,829.02 and 55,129

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Solution

The fourth proportional to 101,887.08, 152,829.02 and 55,129 is: 82,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,887.08 : 152,829.02 = 55,129 : x
  2. Step 2: Convert to fraction form
    101,887.08/152,829.02 = 55,129/x
  3. Step 3: Cross multiply
    101,887.08x = 152,829.02 × 55,129
  4. Step 4: Simplify right side
    101,887.08x = 8,425,311,043.58
  5. Step 5: Solve for x
    x = 8,425,311,043.58/101,887.08
  6. Step 6: Final answer
    x = 82,692.63

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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.