Home / 123,723.92-185,495-39,435.60

Finding the Fourth Proportional to 123,723.92, 185,495 and 39,435.60

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Solution

The fourth proportional to 123,723.92, 185,495 and 39,435.60 is: 59,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.92 : 185,495 = 39,435.60 : x
  2. Step 2: Convert to fraction form
    123,723.92/185,495 = 39,435.60/x
  3. Step 3: Cross multiply
    123,723.92x = 185,495 × 39,435.60
  4. Step 4: Simplify right side
    123,723.92x = 7,315,106,622
  5. Step 5: Solve for x
    x = 7,315,106,622/123,723.92
  6. Step 6: Final answer
    x = 59,124.43

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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.