Home / 145,439.07-218,163.38-40,249.23

Finding the Fourth Proportional to 145,439.07, 218,163.38 and 40,249.23

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Solution

The fourth proportional to 145,439.07, 218,163.38 and 40,249.23 is: 60,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,439.07 : 218,163.38 = 40,249.23 : x
  2. Step 2: Convert to fraction form
    145,439.07/218,163.38 = 40,249.23/x
  3. Step 3: Cross multiply
    145,439.07x = 218,163.38 × 40,249.23
  4. Step 4: Simplify right side
    145,439.07x = 8,780,908,059.20
  5. Step 5: Solve for x
    x = 8,780,908,059.20/145,439.07
  6. Step 6: Final answer
    x = 60,375.17

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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.