Home / 201,961.10-302,941.65-131,458.70

Finding the Fourth Proportional to 201,961.10, 302,941.65 and 131,458.70

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Solution

The fourth proportional to 201,961.10, 302,941.65 and 131,458.70 is: 197,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,961.10 : 302,941.65 = 131,458.70 : x
  2. Step 2: Convert to fraction form
    201,961.10/302,941.65 = 131,458.70/x
  3. Step 3: Cross multiply
    201,961.10x = 302,941.65 × 131,458.70
  4. Step 4: Simplify right side
    201,961.10x = 39,824,315,484.86
  5. Step 5: Solve for x
    x = 39,824,315,484.86/201,961.10
  6. Step 6: Final answer
    x = 197,188.05

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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.