Home / 124,540.20-186,858.90-45,662.40

Finding the Fourth Proportional to 124,540.20, 186,858.90 and 45,662.40

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Solution

The fourth proportional to 124,540.20, 186,858.90 and 45,662.40 is: 68,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,540.20 : 186,858.90 = 45,662.40 : x
  2. Step 2: Convert to fraction form
    124,540.20/186,858.90 = 45,662.40/x
  3. Step 3: Cross multiply
    124,540.20x = 186,858.90 × 45,662.40
  4. Step 4: Simplify right side
    124,540.20x = 8,532,425,835.36
  5. Step 5: Solve for x
    x = 8,532,425,835.36/124,540.20
  6. Step 6: Final answer
    x = 68,511.42

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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.