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Finding the Fourth Proportional to 136,446.92, 203,710.99 and 104,257.53

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Solution

The fourth proportional to 136,446.92, 203,710.99 and 104,257.53 is: 155,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,446.92 : 203,710.99 = 104,257.53 : x
  2. Step 2: Convert to fraction form
    136,446.92/203,710.99 = 104,257.53/x
  3. Step 3: Cross multiply
    136,446.92x = 203,710.99 × 104,257.53
  4. Step 4: Simplify right side
    136,446.92x = 21,238,403,111.41
  5. Step 5: Solve for x
    x = 21,238,403,111.41/136,446.92
  6. Step 6: Final answer
    x = 155,653.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.