Home / 190,664.29-285,826.49-72,418.67

Finding the Fourth Proportional to 190,664.29, 285,826.49 and 72,418.67

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Solution

The fourth proportional to 190,664.29, 285,826.49 and 72,418.67 is: 108,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,664.29 : 285,826.49 = 72,418.67 : x
  2. Step 2: Convert to fraction form
    190,664.29/285,826.49 = 72,418.67/x
  3. Step 3: Cross multiply
    190,664.29x = 285,826.49 × 72,418.67
  4. Step 4: Simplify right side
    190,664.29x = 20,699,173,808.76
  5. Step 5: Solve for x
    x = 20,699,173,808.76/190,664.29
  6. Step 6: Final answer
    x = 108,563.45

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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.