Home / 140,219.12-193,500.92-76,556.72

Finding the Fourth Proportional to 140,219.12, 193,500.92 and 76,556.72

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Solution

The fourth proportional to 140,219.12, 193,500.92 and 76,556.72 is: 105,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,219.12 : 193,500.92 = 76,556.72 : x
  2. Step 2: Convert to fraction form
    140,219.12/193,500.92 = 76,556.72/x
  3. Step 3: Cross multiply
    140,219.12x = 193,500.92 × 76,556.72
  4. Step 4: Simplify right side
    140,219.12x = 14,813,795,752.18
  5. Step 5: Solve for x
    x = 14,813,795,752.18/140,219.12
  6. Step 6: Final answer
    x = 105,647.47

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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.