Home / 154,817.26-213,647.74-90,274.03

Finding the Fourth Proportional to 154,817.26, 213,647.74 and 90,274.03

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Solution

The fourth proportional to 154,817.26, 213,647.74 and 90,274.03 is: 124,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,817.26 : 213,647.74 = 90,274.03 : x
  2. Step 2: Convert to fraction form
    154,817.26/213,647.74 = 90,274.03/x
  3. Step 3: Cross multiply
    154,817.26x = 213,647.74 × 90,274.03
  4. Step 4: Simplify right side
    154,817.26x = 19,286,841,730.39
  5. Step 5: Solve for x
    x = 19,286,841,730.39/154,817.26
  6. Step 6: Final answer
    x = 124,578.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.