Home / 190,536.76-285,555.98-78,085.32

Finding the Fourth Proportional to 190,536.76, 285,555.98 and 78,085.32

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Solution

The fourth proportional to 190,536.76, 285,555.98 and 78,085.32 is: 117,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,536.76 : 285,555.98 = 78,085.32 : x
  2. Step 2: Convert to fraction form
    190,536.76/285,555.98 = 78,085.32/x
  3. Step 3: Cross multiply
    190,536.76x = 285,555.98 × 78,085.32
  4. Step 4: Simplify right side
    190,536.76x = 22,297,729,200.59
  5. Step 5: Solve for x
    x = 22,297,729,200.59/190,536.76
  6. Step 6: Final answer
    x = 117,025.87

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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.