Home / 190,025.11-285,136.08-137,865.16

Finding the Fourth Proportional to 190,025.11, 285,136.08 and 137,865.16

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Solution

The fourth proportional to 190,025.11, 285,136.08 and 137,865.16 is: 206,869.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,025.11 : 285,136.08 = 137,865.16 : x
  2. Step 2: Convert to fraction form
    190,025.11/285,136.08 = 137,865.16/x
  3. Step 3: Cross multiply
    190,025.11x = 285,136.08 × 137,865.16
  4. Step 4: Simplify right side
    190,025.11x = 39,310,331,290.97
  5. Step 5: Solve for x
    x = 39,310,331,290.97/190,025.11
  6. Step 6: Final answer
    x = 206,869.14

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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.