Home / 190,134.29-285,357.33-77,815.59

Finding the Fourth Proportional to 190,134.29, 285,357.33 and 77,815.59

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Solution

The fourth proportional to 190,134.29, 285,357.33 and 77,815.59 is: 116,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,134.29 : 285,357.33 = 77,815.59 : x
  2. Step 2: Convert to fraction form
    190,134.29/285,357.33 = 77,815.59/x
  3. Step 3: Cross multiply
    190,134.29x = 285,357.33 × 77,815.59
  4. Step 4: Simplify right side
    190,134.29x = 22,205,247,924.68
  5. Step 5: Solve for x
    x = 22,205,247,924.68/190,134.29
  6. Step 6: Final answer
    x = 116,787.18

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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.