Home / 103,677.37-155,497.21-28,778.69

Finding the Fourth Proportional to 103,677.37, 155,497.21 and 28,778.69

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Solution

The fourth proportional to 103,677.37, 155,497.21 and 28,778.69 is: 43,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,677.37 : 155,497.21 = 28,778.69 : x
  2. Step 2: Convert to fraction form
    103,677.37/155,497.21 = 28,778.69/x
  3. Step 3: Cross multiply
    103,677.37x = 155,497.21 × 28,778.69
  4. Step 4: Simplify right side
    103,677.37x = 4,475,006,002.45
  5. Step 5: Solve for x
    x = 4,475,006,002.45/103,677.37
  6. Step 6: Final answer
    x = 43,162.80

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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.