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Finding the Fourth Proportional to 133,181.20, 183,787.02 and 72,752.11

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Solution

The fourth proportional to 133,181.20, 183,787.02 and 72,752.11 is: 100,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,181.20 : 183,787.02 = 72,752.11 : x
  2. Step 2: Convert to fraction form
    133,181.20/183,787.02 = 72,752.11/x
  3. Step 3: Cross multiply
    133,181.20x = 183,787.02 × 72,752.11
  4. Step 4: Simplify right side
    133,181.20x = 13,370,893,495.61
  5. Step 5: Solve for x
    x = 13,370,893,495.61/133,181.20
  6. Step 6: Final answer
    x = 100,396.25

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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.