Home / 190,408.28-285,262.10-119,317.67

Finding the Fourth Proportional to 190,408.28, 285,262.10 and 119,317.67

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Solution

The fourth proportional to 190,408.28, 285,262.10 and 119,317.67 is: 178,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,408.28 : 285,262.10 = 119,317.67 : x
  2. Step 2: Convert to fraction form
    190,408.28/285,262.10 = 119,317.67/x
  3. Step 3: Cross multiply
    190,408.28x = 285,262.10 × 119,317.67
  4. Step 4: Simplify right side
    190,408.28x = 34,036,809,677.89
  5. Step 5: Solve for x
    x = 34,036,809,677.89/190,408.28
  6. Step 6: Final answer
    x = 178,756.98

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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.