Home / 251,638.90-347,255.30-136,912.66

Finding the Fourth Proportional to 251,638.90, 347,255.30 and 136,912.66

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Solution

The fourth proportional to 251,638.90, 347,255.30 and 136,912.66 is: 188,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,638.90 : 347,255.30 = 136,912.66 : x
  2. Step 2: Convert to fraction form
    251,638.90/347,255.30 = 136,912.66/x
  3. Step 3: Cross multiply
    251,638.90x = 347,255.30 × 136,912.66
  4. Step 4: Simplify right side
    251,638.90x = 47,543,646,822.10
  5. Step 5: Solve for x
    x = 47,543,646,822.10/251,638.90
  6. Step 6: Final answer
    x = 188,936.00

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1.5x scale

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.