Home / 133,018.09-183,564.88-76,429.33

Finding the Fourth Proportional to 133,018.09, 183,564.88 and 76,429.33

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Solution

The fourth proportional to 133,018.09, 183,564.88 and 76,429.33 is: 105,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.09 : 183,564.88 = 76,429.33 : x
  2. Step 2: Convert to fraction form
    133,018.09/183,564.88 = 76,429.33/x
  3. Step 3: Cross multiply
    133,018.09x = 183,564.88 × 76,429.33
  4. Step 4: Simplify right side
    133,018.09x = 14,029,740,789.93
  5. Step 5: Solve for x
    x = 14,029,740,789.93/133,018.09
  6. Step 6: Final answer
    x = 105,472.43

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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.