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Finding the Fourth Proportional to 133,170, 183,774.60 and 73,557.84

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Solution

The fourth proportional to 133,170, 183,774.60 and 73,557.84 is: 101,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,170 : 183,774.60 = 73,557.84 : x
  2. Step 2: Convert to fraction form
    133,170/183,774.60 = 73,557.84/x
  3. Step 3: Cross multiply
    133,170x = 183,774.60 × 73,557.84
  4. Step 4: Simplify right side
    133,170x = 13,518,062,622.86
  5. Step 5: Solve for x
    x = 13,518,062,622.86/133,170
  6. Step 6: Final answer
    x = 101,509.82

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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.