Home / 190,252.89-285,382.13-90,423.27

Finding the Fourth Proportional to 190,252.89, 285,382.13 and 90,423.27

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Solution

The fourth proportional to 190,252.89, 285,382.13 and 90,423.27 is: 135,636.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,252.89 : 285,382.13 = 90,423.27 : x
  2. Step 2: Convert to fraction form
    190,252.89/285,382.13 = 90,423.27/x
  3. Step 3: Cross multiply
    190,252.89x = 285,382.13 × 90,423.27
  4. Step 4: Simplify right side
    190,252.89x = 25,805,184,942.05
  5. Step 5: Solve for x
    x = 25,805,184,942.05/190,252.89
  6. Step 6: Final answer
    x = 135,636.23

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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.