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Finding the Fourth Proportional to 149,692.53, 206,570.52 and 89,232

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Solution

The fourth proportional to 149,692.53, 206,570.52 and 89,232 is: 123,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,692.53 : 206,570.52 = 89,232 : x
  2. Step 2: Convert to fraction form
    149,692.53/206,570.52 = 89,232/x
  3. Step 3: Cross multiply
    149,692.53x = 206,570.52 × 89,232
  4. Step 4: Simplify right side
    149,692.53x = 18,432,700,640.64
  5. Step 5: Solve for x
    x = 18,432,700,640.64/149,692.53
  6. Step 6: Final answer
    x = 123,137.08

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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.