Home / 102,616.26-154,157.97-74,240.76

Finding the Fourth Proportional to 102,616.26, 154,157.97 and 74,240.76

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Solution

The fourth proportional to 102,616.26, 154,157.97 and 74,240.76 is: 111,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,616.26 : 154,157.97 = 74,240.76 : x
  2. Step 2: Convert to fraction form
    102,616.26/154,157.97 = 74,240.76/x
  3. Step 3: Cross multiply
    102,616.26x = 154,157.97 × 74,240.76
  4. Step 4: Simplify right side
    102,616.26x = 11,444,804,852.86
  5. Step 5: Solve for x
    x = 11,444,804,852.86/102,616.26
  6. Step 6: Final answer
    x = 111,530.13

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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.