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Finding the Fourth Proportional to 136,008.45, 203,813.01 and 68,447.58

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Solution

The fourth proportional to 136,008.45, 203,813.01 and 68,447.58 is: 102,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,008.45 : 203,813.01 = 68,447.58 : x
  2. Step 2: Convert to fraction form
    136,008.45/203,813.01 = 68,447.58/x
  3. Step 3: Cross multiply
    136,008.45x = 203,813.01 × 68,447.58
  4. Step 4: Simplify right side
    136,008.45x = 13,950,507,307.02
  5. Step 5: Solve for x
    x = 13,950,507,307.02/136,008.45
  6. Step 6: Final answer
    x = 102,570.89

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1.5x scale

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.