Home / 133,020.78-183,600.09-76,464.96

Finding the Fourth Proportional to 133,020.78, 183,600.09 and 76,464.96

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Solution

The fourth proportional to 133,020.78, 183,600.09 and 76,464.96 is: 105,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020.78 : 183,600.09 = 76,464.96 : x
  2. Step 2: Convert to fraction form
    133,020.78/183,600.09 = 76,464.96/x
  3. Step 3: Cross multiply
    133,020.78x = 183,600.09 × 76,464.96
  4. Step 4: Simplify right side
    133,020.78x = 14,038,973,537.85
  5. Step 5: Solve for x
    x = 14,038,973,537.85/133,020.78
  6. Step 6: Final answer
    x = 105,539.70

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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.