Home / 103,331.61-154,998.21-28,455.87

Finding the Fourth Proportional to 103,331.61, 154,998.21 and 28,455.87

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Solution

The fourth proportional to 103,331.61, 154,998.21 and 28,455.87 is: 42,684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,331.61 : 154,998.21 = 28,455.87 : x
  2. Step 2: Convert to fraction form
    103,331.61/154,998.21 = 28,455.87/x
  3. Step 3: Cross multiply
    103,331.61x = 154,998.21 × 28,455.87
  4. Step 4: Simplify right side
    103,331.61x = 4,410,608,913.99
  5. Step 5: Solve for x
    x = 4,410,608,913.99/103,331.61
  6. Step 6: Final answer
    x = 42,684.02

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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.