Home / 103,684.36-155,525.73-28,805.53

Finding the Fourth Proportional to 103,684.36, 155,525.73 and 28,805.53

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Solution

The fourth proportional to 103,684.36, 155,525.73 and 28,805.53 is: 43,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,684.36 : 155,525.73 = 28,805.53 : x
  2. Step 2: Convert to fraction form
    103,684.36/155,525.73 = 28,805.53/x
  3. Step 3: Cross multiply
    103,684.36x = 155,525.73 × 28,805.53
  4. Step 4: Simplify right side
    103,684.36x = 4,480,001,081.29
  5. Step 5: Solve for x
    x = 4,480,001,081.29/103,684.36
  6. Step 6: Final answer
    x = 43,208.07

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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.