Home / 196,344.09-294,621.84-78,016.50

Finding the Fourth Proportional to 196,344.09, 294,621.84 and 78,016.50

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Solution

The fourth proportional to 196,344.09, 294,621.84 and 78,016.50 is: 117,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,344.09 : 294,621.84 = 78,016.50 : x
  2. Step 2: Convert to fraction form
    196,344.09/294,621.84 = 78,016.50/x
  3. Step 3: Cross multiply
    196,344.09x = 294,621.84 × 78,016.50
  4. Step 4: Simplify right side
    196,344.09x = 22,985,364,780.36
  5. Step 5: Solve for x
    x = 22,985,364,780.36/196,344.09
  6. Step 6: Final answer
    x = 117,066.75

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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.