Home / 133,021.31-183,554.33-76,450.91

Finding the Fourth Proportional to 133,021.31, 183,554.33 and 76,450.91

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Solution

The fourth proportional to 133,021.31, 183,554.33 and 76,450.91 is: 105,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.31 : 183,554.33 = 76,450.91 : x
  2. Step 2: Convert to fraction form
    133,021.31/183,554.33 = 76,450.91/x
  3. Step 3: Cross multiply
    133,021.31x = 183,554.33 × 76,450.91
  4. Step 4: Simplify right side
    133,021.31x = 14,032,894,262.91
  5. Step 5: Solve for x
    x = 14,032,894,262.91/133,021.31
  6. Step 6: Final answer
    x = 105,493.58

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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.