Home / 196,981.60-295,126.80-161,730.40

Finding the Fourth Proportional to 196,981.60, 295,126.80 and 161,730.40

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Solution

The fourth proportional to 196,981.60, 295,126.80 and 161,730.40 is: 242,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,981.60 : 295,126.80 = 161,730.40 : x
  2. Step 2: Convert to fraction form
    196,981.60/295,126.80 = 161,730.40/x
  3. Step 3: Cross multiply
    196,981.60x = 295,126.80 × 161,730.40
  4. Step 4: Simplify right side
    196,981.60x = 47,730,975,414.72
  5. Step 5: Solve for x
    x = 47,730,975,414.72/196,981.60
  6. Step 6: Final answer
    x = 242,311.85

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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.