Home / 149,078.40-223,617.60-82,723.20

Finding the Fourth Proportional to 149,078.40, 223,617.60 and 82,723.20

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Solution

The fourth proportional to 149,078.40, 223,617.60 and 82,723.20 is: 124,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,078.40 : 223,617.60 = 82,723.20 : x
  2. Step 2: Convert to fraction form
    149,078.40/223,617.60 = 82,723.20/x
  3. Step 3: Cross multiply
    149,078.40x = 223,617.60 × 82,723.20
  4. Step 4: Simplify right side
    149,078.40x = 18,498,363,448.32
  5. Step 5: Solve for x
    x = 18,498,363,448.32/149,078.40
  6. Step 6: Final answer
    x = 124,084.80

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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.