Home / 190,352.16-285,530.27-78,003.54

Finding the Fourth Proportional to 190,352.16, 285,530.27 and 78,003.54

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Solution

The fourth proportional to 190,352.16, 285,530.27 and 78,003.54 is: 117,006.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,352.16 : 285,530.27 = 78,003.54 : x
  2. Step 2: Convert to fraction form
    190,352.16/285,530.27 = 78,003.54/x
  3. Step 3: Cross multiply
    190,352.16x = 285,530.27 × 78,003.54
  4. Step 4: Simplify right side
    190,352.16x = 22,272,371,447.14
  5. Step 5: Solve for x
    x = 22,272,371,447.14/190,352.16
  6. Step 6: Final answer
    x = 117,006.14

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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.