Home / 133,167.78-183,780.09-76,577.94

Finding the Fourth Proportional to 133,167.78, 183,780.09 and 76,577.94

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Solution

The fourth proportional to 133,167.78, 183,780.09 and 76,577.94 is: 105,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,167.78 : 183,780.09 = 76,577.94 : x
  2. Step 2: Convert to fraction form
    133,167.78/183,780.09 = 76,577.94/x
  3. Step 3: Cross multiply
    133,167.78x = 183,780.09 × 76,577.94
  4. Step 4: Simplify right side
    133,167.78x = 14,073,500,705.21
  5. Step 5: Solve for x
    x = 14,073,500,705.21/133,167.78
  6. Step 6: Final answer
    x = 105,682.48

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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.