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Finding the Fourth Proportional to 136,256.30, 204,420.90 and 96,890.30

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Solution

The fourth proportional to 136,256.30, 204,420.90 and 96,890.30 is: 145,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,256.30 : 204,420.90 = 96,890.30 : x
  2. Step 2: Convert to fraction form
    136,256.30/204,420.90 = 96,890.30/x
  3. Step 3: Cross multiply
    136,256.30x = 204,420.90 × 96,890.30
  4. Step 4: Simplify right side
    136,256.30x = 19,806,402,327.27
  5. Step 5: Solve for x
    x = 19,806,402,327.27/136,256.30
  6. Step 6: Final answer
    x = 145,361.37

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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.