Home / 190,708.16-285,997.44-66,020

Finding the Fourth Proportional to 190,708.16, 285,997.44 and 66,020

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Solution

The fourth proportional to 190,708.16, 285,997.44 and 66,020 is: 99,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,708.16 : 285,997.44 = 66,020 : x
  2. Step 2: Convert to fraction form
    190,708.16/285,997.44 = 66,020/x
  3. Step 3: Cross multiply
    190,708.16x = 285,997.44 × 66,020
  4. Step 4: Simplify right side
    190,708.16x = 18,881,550,988.80
  5. Step 5: Solve for x
    x = 18,881,550,988.80/190,708.16
  6. Step 6: Final answer
    x = 99,007.57

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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.