Home / 196,853.28-295,261.20-78,492.96

Finding the Fourth Proportional to 196,853.28, 295,261.20 and 78,492.96

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Solution

The fourth proportional to 196,853.28, 295,261.20 and 78,492.96 is: 117,731.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,853.28 : 295,261.20 = 78,492.96 : x
  2. Step 2: Convert to fraction form
    196,853.28/295,261.20 = 78,492.96/x
  3. Step 3: Cross multiply
    196,853.28x = 295,261.20 × 78,492.96
  4. Step 4: Simplify right side
    196,853.28x = 23,175,925,561.15
  5. Step 5: Solve for x
    x = 23,175,925,561.15/196,853.28
  6. Step 6: Final answer
    x = 117,731.98

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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.