Home / 190,351.41-285,529.14-78,002.79

Finding the Fourth Proportional to 190,351.41, 285,529.14 and 78,002.79

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Solution

The fourth proportional to 190,351.41, 285,529.14 and 78,002.79 is: 117,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,351.41 : 285,529.14 = 78,002.79 : x
  2. Step 2: Convert to fraction form
    190,351.41/285,529.14 = 78,002.79/x
  3. Step 3: Cross multiply
    190,351.41x = 285,529.14 × 78,002.79
  4. Step 4: Simplify right side
    190,351.41x = 22,272,069,546.30
  5. Step 5: Solve for x
    x = 22,272,069,546.30/190,351.41
  6. Step 6: Final answer
    x = 117,005.01

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1.5x scale

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.