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Finding the Fourth Proportional to 133,169.32, 183,813.06 and 76,620.52

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Solution

The fourth proportional to 133,169.32, 183,813.06 and 76,620.52 is: 105,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,169.32 : 183,813.06 = 76,620.52 : x
  2. Step 2: Convert to fraction form
    133,169.32/183,813.06 = 76,620.52/x
  3. Step 3: Cross multiply
    133,169.32x = 183,813.06 × 76,620.52
  4. Step 4: Simplify right side
    133,169.32x = 14,083,852,239.99
  5. Step 5: Solve for x
    x = 14,083,852,239.99/133,169.32
  6. Step 6: Final answer
    x = 105,758.99

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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.