Home / 103,743.25-155,615.01-28,863.40

Finding the Fourth Proportional to 103,743.25, 155,615.01 and 28,863.40

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Solution

The fourth proportional to 103,743.25, 155,615.01 and 28,863.40 is: 43,295.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,743.25 : 155,615.01 = 28,863.40 : x
  2. Step 2: Convert to fraction form
    103,743.25/155,615.01 = 28,863.40/x
  3. Step 3: Cross multiply
    103,743.25x = 155,615.01 × 28,863.40
  4. Step 4: Simplify right side
    103,743.25x = 4,491,578,279.63
  5. Step 5: Solve for x
    x = 4,491,578,279.63/103,743.25
  6. Step 6: Final answer
    x = 43,295.14

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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.