Home / 154,380.75-213,045.44-83,724.75

Finding the Fourth Proportional to 154,380.75, 213,045.44 and 83,724.75

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Solution

The fourth proportional to 154,380.75, 213,045.44 and 83,724.75 is: 115,540.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,380.75 : 213,045.44 = 83,724.75 : x
  2. Step 2: Convert to fraction form
    154,380.75/213,045.44 = 83,724.75/x
  3. Step 3: Cross multiply
    154,380.75x = 213,045.44 × 83,724.75
  4. Step 4: Simplify right side
    154,380.75x = 17,837,175,784.02
  5. Step 5: Solve for x
    x = 17,837,175,784.02/154,380.75
  6. Step 6: Final answer
    x = 115,540.16

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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.