Home / 103,976.83-155,965.21-40,826.67

Finding the Fourth Proportional to 103,976.83, 155,965.21 and 40,826.67

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Solution

The fourth proportional to 103,976.83, 155,965.21 and 40,826.67 is: 61,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,976.83 : 155,965.21 = 40,826.67 : x
  2. Step 2: Convert to fraction form
    103,976.83/155,965.21 = 40,826.67/x
  3. Step 3: Cross multiply
    103,976.83x = 155,965.21 × 40,826.67
  4. Step 4: Simplify right side
    103,976.83x = 6,367,539,473.21
  5. Step 5: Solve for x
    x = 6,367,539,473.21/103,976.83
  6. Step 6: Final answer
    x = 61,239.98

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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.