Home / 290,776.06-436,163.55-91,111.74

Finding the Fourth Proportional to 290,776.06, 436,163.55 and 91,111.74

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Solution

The fourth proportional to 290,776.06, 436,163.55 and 91,111.74 is: 136,667.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,776.06 : 436,163.55 = 91,111.74 : x
  2. Step 2: Convert to fraction form
    290,776.06/436,163.55 = 91,111.74/x
  3. Step 3: Cross multiply
    290,776.06x = 436,163.55 × 91,111.74
  4. Step 4: Simplify right side
    290,776.06x = 39,739,619,965.08
  5. Step 5: Solve for x
    x = 39,739,619,965.08/290,776.06
  6. Step 6: Final answer
    x = 136,667.44

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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.