Home / 190,105.40-284,927.70-84,812.60

Finding the Fourth Proportional to 190,105.40, 284,927.70 and 84,812.60

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Solution

The fourth proportional to 190,105.40, 284,927.70 and 84,812.60 is: 127,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,105.40 : 284,927.70 = 84,812.60 : x
  2. Step 2: Convert to fraction form
    190,105.40/284,927.70 = 84,812.60/x
  3. Step 3: Cross multiply
    190,105.40x = 284,927.70 × 84,812.60
  4. Step 4: Simplify right side
    190,105.40x = 24,165,459,049.02
  5. Step 5: Solve for x
    x = 24,165,459,049.02/190,105.40
  6. Step 6: Final answer
    x = 127,116.11

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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.