Home / 281,121.24-421,682.28-114,909.24

Finding the Fourth Proportional to 281,121.24, 421,682.28 and 114,909.24

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Solution

The fourth proportional to 281,121.24, 421,682.28 and 114,909.24 is: 172,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,121.24 : 421,682.28 = 114,909.24 : x
  2. Step 2: Convert to fraction form
    281,121.24/421,682.28 = 114,909.24/x
  3. Step 3: Cross multiply
    281,121.24x = 421,682.28 × 114,909.24
  4. Step 4: Simplify right side
    281,121.24x = 48,455,190,316.27
  5. Step 5: Solve for x
    x = 48,455,190,316.27/281,121.24
  6. Step 6: Final answer
    x = 172,364.03

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1.5x scale

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.