Home / 45,435.37-68,147.64-12,158.00

Finding the Fourth Proportional to 45,435.37, 68,147.64 and 12,158.00

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Solution

The fourth proportional to 45,435.37, 68,147.64 and 12,158.00 is: 18,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,435.37 : 68,147.64 = 12,158.00 : x
  2. Step 2: Convert to fraction form
    45,435.37/68,147.64 = 12,158.00/x
  3. Step 3: Cross multiply
    45,435.37x = 68,147.64 × 12,158.00
  4. Step 4: Simplify right side
    45,435.37x = 828,539,177.49
  5. Step 5: Solve for x
    x = 828,539,177.49/45,435.37
  6. Step 6: Final answer
    x = 18,235.56

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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.