Home / 137,231.07-205,674.36-74,048.64

Finding the Fourth Proportional to 137,231.07, 205,674.36 and 74,048.64

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Solution

The fourth proportional to 137,231.07, 205,674.36 and 74,048.64 is: 110,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,231.07 : 205,674.36 = 74,048.64 : x
  2. Step 2: Convert to fraction form
    137,231.07/205,674.36 = 74,048.64/x
  3. Step 3: Cross multiply
    137,231.07x = 205,674.36 × 74,048.64
  4. Step 4: Simplify right side
    137,231.07x = 15,229,906,640.87
  5. Step 5: Solve for x
    x = 15,229,906,640.87/137,231.07
  6. Step 6: Final answer
    x = 110,980.02

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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.