Home / 190,049.18-285,442.82-139,931.33

Finding the Fourth Proportional to 190,049.18, 285,442.82 and 139,931.33

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Solution

The fourth proportional to 190,049.18, 285,442.82 and 139,931.33 is: 210,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,049.18 : 285,442.82 = 139,931.33 : x
  2. Step 2: Convert to fraction form
    190,049.18/285,442.82 = 139,931.33/x
  3. Step 3: Cross multiply
    190,049.18x = 285,442.82 × 139,931.33
  4. Step 4: Simplify right side
    190,049.18x = 39,942,391,314.68
  5. Step 5: Solve for x
    x = 39,942,391,314.68/190,049.18
  6. Step 6: Final answer
    x = 210,168.72

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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.