Home / 145,453.42-218,173.78-45,611.34

Finding the Fourth Proportional to 145,453.42, 218,173.78 and 45,611.34

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Solution

The fourth proportional to 145,453.42, 218,173.78 and 45,611.34 is: 68,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,453.42 : 218,173.78 = 45,611.34 : x
  2. Step 2: Convert to fraction form
    145,453.42/218,173.78 = 45,611.34/x
  3. Step 3: Cross multiply
    145,453.42x = 218,173.78 × 45,611.34
  4. Step 4: Simplify right side
    145,453.42x = 9,951,198,458.67
  5. Step 5: Solve for x
    x = 9,951,198,458.67/145,453.42
  6. Step 6: Final answer
    x = 68,415.02

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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.