Home / 291,120.77-436,677.06-91,453.14

Finding the Fourth Proportional to 291,120.77, 436,677.06 and 91,453.14

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Solution

The fourth proportional to 291,120.77, 436,677.06 and 91,453.14 is: 137,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,120.77 : 436,677.06 = 91,453.14 : x
  2. Step 2: Convert to fraction form
    291,120.77/436,677.06 = 91,453.14/x
  3. Step 3: Cross multiply
    291,120.77x = 436,677.06 × 91,453.14
  4. Step 4: Simplify right side
    291,120.77x = 39,935,488,302.97
  5. Step 5: Solve for x
    x = 39,935,488,302.97/291,120.77
  6. Step 6: Final answer
    x = 137,178.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.