Home / 120,374.03-180,462.53-45,451.67

Finding the Fourth Proportional to 120,374.03, 180,462.53 and 45,451.67

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Solution

The fourth proportional to 120,374.03, 180,462.53 and 45,451.67 is: 68,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,374.03 : 180,462.53 = 45,451.67 : x
  2. Step 2: Convert to fraction form
    120,374.03/180,462.53 = 45,451.67/x
  3. Step 3: Cross multiply
    120,374.03x = 180,462.53 × 45,451.67
  4. Step 4: Simplify right side
    120,374.03x = 8,202,322,572.24
  5. Step 5: Solve for x
    x = 8,202,322,572.24/120,374.03
  6. Step 6: Final answer
    x = 68,140.30

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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.