Home / 286,650.80-429,814.20-109,163.60

Finding the Fourth Proportional to 286,650.80, 429,814.20 and 109,163.60

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Solution

The fourth proportional to 286,650.80, 429,814.20 and 109,163.60 is: 163,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,650.80 : 429,814.20 = 109,163.60 : x
  2. Step 2: Convert to fraction form
    286,650.80/429,814.20 = 109,163.60/x
  3. Step 3: Cross multiply
    286,650.80x = 429,814.20 × 109,163.60
  4. Step 4: Simplify right side
    286,650.80x = 46,920,065,403.12
  5. Step 5: Solve for x
    x = 46,920,065,403.12/286,650.80
  6. Step 6: Final answer
    x = 163,683.71

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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.