Home / 103,645.04-155,416.44-43,662.56

Finding the Fourth Proportional to 103,645.04, 155,416.44 and 43,662.56

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Solution

The fourth proportional to 103,645.04, 155,416.44 and 43,662.56 is: 65,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.04 : 155,416.44 = 43,662.56 : x
  2. Step 2: Convert to fraction form
    103,645.04/155,416.44 = 43,662.56/x
  3. Step 3: Cross multiply
    103,645.04x = 155,416.44 × 43,662.56
  4. Step 4: Simplify right side
    103,645.04x = 6,785,879,636.49
  5. Step 5: Solve for x
    x = 6,785,879,636.49/103,645.04
  6. Step 6: Final answer
    x = 65,472.30

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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.