Home / 103,531.26-155,300.36-28,645.14

Finding the Fourth Proportional to 103,531.26, 155,300.36 and 28,645.14

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Solution

The fourth proportional to 103,531.26, 155,300.36 and 28,645.14 is: 42,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,531.26 : 155,300.36 = 28,645.14 : x
  2. Step 2: Convert to fraction form
    103,531.26/155,300.36 = 28,645.14/x
  3. Step 3: Cross multiply
    103,531.26x = 155,300.36 × 28,645.14
  4. Step 4: Simplify right side
    103,531.26x = 4,448,601,235.09
  5. Step 5: Solve for x
    x = 4,448,601,235.09/103,531.26
  6. Step 6: Final answer
    x = 42,968.68

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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.