Home / 190,521.20-285,781.88-70,619.39

Finding the Fourth Proportional to 190,521.20, 285,781.88 and 70,619.39

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Solution

The fourth proportional to 190,521.20, 285,781.88 and 70,619.39 is: 105,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,521.20 : 285,781.88 = 70,619.39 : x
  2. Step 2: Convert to fraction form
    190,521.20/285,781.88 = 70,619.39/x
  3. Step 3: Cross multiply
    190,521.20x = 285,781.88 × 70,619.39
  4. Step 4: Simplify right side
    190,521.20x = 20,181,740,786.29
  5. Step 5: Solve for x
    x = 20,181,740,786.29/190,521.20
  6. Step 6: Final answer
    x = 105,929.11

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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.