Home / 190,665.83-285,822.20-70,655.96

Finding the Fourth Proportional to 190,665.83, 285,822.20 and 70,655.96

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Solution

The fourth proportional to 190,665.83, 285,822.20 and 70,655.96 is: 105,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,665.83 : 285,822.20 = 70,655.96 : x
  2. Step 2: Convert to fraction form
    190,665.83/285,822.20 = 70,655.96/x
  3. Step 3: Cross multiply
    190,665.83x = 285,822.20 × 70,655.96
  4. Step 4: Simplify right side
    190,665.83x = 20,195,042,821.51
  5. Step 5: Solve for x
    x = 20,195,042,821.51/190,665.83
  6. Step 6: Final answer
    x = 105,918.52

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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.