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Finding the Fourth Proportional to 149,460.99, 206,250.08 and 81,476.48

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Solution

The fourth proportional to 149,460.99, 206,250.08 and 81,476.48 is: 112,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,460.99 : 206,250.08 = 81,476.48 : x
  2. Step 2: Convert to fraction form
    149,460.99/206,250.08 = 81,476.48/x
  3. Step 3: Cross multiply
    149,460.99x = 206,250.08 × 81,476.48
  4. Step 4: Simplify right side
    149,460.99x = 16,804,529,079.49
  5. Step 5: Solve for x
    x = 16,804,529,079.49/149,460.99
  6. Step 6: Final answer
    x = 112,434.21

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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.