Home / 190,102.50-285,522.81-139,984.66

Finding the Fourth Proportional to 190,102.50, 285,522.81 and 139,984.66

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Solution

The fourth proportional to 190,102.50, 285,522.81 and 139,984.66 is: 210,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,102.50 : 285,522.81 = 139,984.66 : x
  2. Step 2: Convert to fraction form
    190,102.50/285,522.81 = 139,984.66/x
  3. Step 3: Cross multiply
    190,102.50x = 285,522.81 × 139,984.66
  4. Step 4: Simplify right side
    190,102.50x = 39,968,813,480.09
  5. Step 5: Solve for x
    x = 39,968,813,480.09/190,102.50
  6. Step 6: Final answer
    x = 210,248.75

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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.