Home / 190,834.38-285,815.59-91,064.63

Finding the Fourth Proportional to 190,834.38, 285,815.59 and 91,064.63

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Solution

The fourth proportional to 190,834.38, 285,815.59 and 91,064.63 is: 136,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,834.38 : 285,815.59 = 91,064.63 : x
  2. Step 2: Convert to fraction form
    190,834.38/285,815.59 = 91,064.63/x
  3. Step 3: Cross multiply
    190,834.38x = 285,815.59 × 91,064.63
  4. Step 4: Simplify right side
    190,834.38x = 26,027,691,438.46
  5. Step 5: Solve for x
    x = 26,027,691,438.46/190,834.38
  6. Step 6: Final answer
    x = 136,388.90

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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.