Home / 120,140.24-180,256.44-46,274

Finding the Fourth Proportional to 120,140.24, 180,256.44 and 46,274

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Solution

The fourth proportional to 120,140.24, 180,256.44 and 46,274 is: 69,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,140.24 : 180,256.44 = 46,274 : x
  2. Step 2: Convert to fraction form
    120,140.24/180,256.44 = 46,274/x
  3. Step 3: Cross multiply
    120,140.24x = 180,256.44 × 46,274
  4. Step 4: Simplify right side
    120,140.24x = 8,341,186,504.56
  5. Step 5: Solve for x
    x = 8,341,186,504.56/120,140.24
  6. Step 6: Final answer
    x = 69,428.75

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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.