Home / 143,824.40-215,650.20-73,840.40

Finding the Fourth Proportional to 143,824.40, 215,650.20 and 73,840.40

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Solution

The fourth proportional to 143,824.40, 215,650.20 and 73,840.40 is: 110,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,824.40 : 215,650.20 = 73,840.40 : x
  2. Step 2: Convert to fraction form
    143,824.40/215,650.20 = 73,840.40/x
  3. Step 3: Cross multiply
    143,824.40x = 215,650.20 × 73,840.40
  4. Step 4: Simplify right side
    143,824.40x = 15,923,697,028.08
  5. Step 5: Solve for x
    x = 15,923,697,028.08/143,824.40
  6. Step 6: Final answer
    x = 110,716.24

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1.5x scale

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.