Home / 103,169.07-154,743.23-28,296.74

Finding the Fourth Proportional to 103,169.07, 154,743.23 and 28,296.74

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Solution

The fourth proportional to 103,169.07, 154,743.23 and 28,296.74 is: 42,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,169.07 : 154,743.23 = 28,296.74 : x
  2. Step 2: Convert to fraction form
    103,169.07/154,743.23 = 28,296.74/x
  3. Step 3: Cross multiply
    103,169.07x = 154,743.23 × 28,296.74
  4. Step 4: Simplify right side
    103,169.07x = 4,378,728,030.87
  5. Step 5: Solve for x
    x = 4,378,728,030.87/103,169.07
  6. Step 6: Final answer
    x = 42,442.26

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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.