Home / 209,519.96-288,936.52-140,764.75

Finding the Fourth Proportional to 209,519.96, 288,936.52 and 140,764.75

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Solution

The fourth proportional to 209,519.96, 288,936.52 and 140,764.75 is: 194,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,519.96 : 288,936.52 = 140,764.75 : x
  2. Step 2: Convert to fraction form
    209,519.96/288,936.52 = 140,764.75/x
  3. Step 3: Cross multiply
    209,519.96x = 288,936.52 × 140,764.75
  4. Step 4: Simplify right side
    209,519.96x = 40,672,075,929.42
  5. Step 5: Solve for x
    x = 40,672,075,929.42/209,519.96
  6. Step 6: Final answer
    x = 194,120.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.