Home / 145,255.21-217,895.37-40,074.18

Finding the Fourth Proportional to 145,255.21, 217,895.37 and 40,074.18

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Solution

The fourth proportional to 145,255.21, 217,895.37 and 40,074.18 is: 60,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,255.21 : 217,895.37 = 40,074.18 : x
  2. Step 2: Convert to fraction form
    145,255.21/217,895.37 = 40,074.18/x
  3. Step 3: Cross multiply
    145,255.21x = 217,895.37 × 40,074.18
  4. Step 4: Simplify right side
    145,255.21x = 8,731,977,311.16
  5. Step 5: Solve for x
    x = 8,731,977,311.16/145,255.21
  6. Step 6: Final answer
    x = 60,114.73

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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.