Home / 190,532.04-285,786.54-85,322.76

Finding the Fourth Proportional to 190,532.04, 285,786.54 and 85,322.76

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Solution

The fourth proportional to 190,532.04, 285,786.54 and 85,322.76 is: 127,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,532.04 : 285,786.54 = 85,322.76 : x
  2. Step 2: Convert to fraction form
    190,532.04/285,786.54 = 85,322.76/x
  3. Step 3: Cross multiply
    190,532.04x = 285,786.54 × 85,322.76
  4. Step 4: Simplify right side
    190,532.04x = 24,384,096,363.65
  5. Step 5: Solve for x
    x = 24,384,096,363.65/190,532.04
  6. Step 6: Final answer
    x = 127,978.98

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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.