Home / 103,664.14-155,496.04-28,784.32

Finding the Fourth Proportional to 103,664.14, 155,496.04 and 28,784.32

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Solution

The fourth proportional to 103,664.14, 155,496.04 and 28,784.32 is: 43,176.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.14 : 155,496.04 = 28,784.32 : x
  2. Step 2: Convert to fraction form
    103,664.14/155,496.04 = 28,784.32/x
  3. Step 3: Cross multiply
    103,664.14x = 155,496.04 × 28,784.32
  4. Step 4: Simplify right side
    103,664.14x = 4,475,847,774.09
  5. Step 5: Solve for x
    x = 4,475,847,774.09/103,664.14
  6. Step 6: Final answer
    x = 43,176.43

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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.