Home / 145,712.22-218,438.66-56,945.54

Finding the Fourth Proportional to 145,712.22, 218,438.66 and 56,945.54

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Solution

The fourth proportional to 145,712.22, 218,438.66 and 56,945.54 is: 85,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,712.22 : 218,438.66 = 56,945.54 : x
  2. Step 2: Convert to fraction form
    145,712.22/218,438.66 = 56,945.54/x
  3. Step 3: Cross multiply
    145,712.22x = 218,438.66 × 56,945.54
  4. Step 4: Simplify right side
    145,712.22x = 12,439,107,450.58
  5. Step 5: Solve for x
    x = 12,439,107,450.58/145,712.22
  6. Step 6: Final answer
    x = 85,367.63

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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.