Home / 145,289.82-217,947.27-40,108.80

Finding the Fourth Proportional to 145,289.82, 217,947.27 and 40,108.80

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Solution

The fourth proportional to 145,289.82, 217,947.27 and 40,108.80 is: 60,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,289.82 : 217,947.27 = 40,108.80 : x
  2. Step 2: Convert to fraction form
    145,289.82/217,947.27 = 40,108.80/x
  3. Step 3: Cross multiply
    145,289.82x = 217,947.27 × 40,108.80
  4. Step 4: Simplify right side
    145,289.82x = 8,741,603,462.98
  5. Step 5: Solve for x
    x = 8,741,603,462.98/145,289.82
  6. Step 6: Final answer
    x = 60,166.66

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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.