Home / 120,631.40-180,860.70-50,474.60

Finding the Fourth Proportional to 120,631.40, 180,860.70 and 50,474.60

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Solution

The fourth proportional to 120,631.40, 180,860.70 and 50,474.60 is: 75,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.40 : 180,860.70 = 50,474.60 : x
  2. Step 2: Convert to fraction form
    120,631.40/180,860.70 = 50,474.60/x
  3. Step 3: Cross multiply
    120,631.40x = 180,860.70 × 50,474.60
  4. Step 4: Simplify right side
    120,631.40x = 9,128,871,488.22
  5. Step 5: Solve for x
    x = 9,128,871,488.22/120,631.40
  6. Step 6: Final answer
    x = 75,675.75

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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.