Home / 255,899.12-383,848.68-131,160.56

Finding the Fourth Proportional to 255,899.12, 383,848.68 and 131,160.56

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Solution

The fourth proportional to 255,899.12, 383,848.68 and 131,160.56 is: 196,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,899.12 : 383,848.68 = 131,160.56 : x
  2. Step 2: Convert to fraction form
    255,899.12/383,848.68 = 131,160.56/x
  3. Step 3: Cross multiply
    255,899.12x = 383,848.68 × 131,160.56
  4. Step 4: Simplify right side
    255,899.12x = 50,345,807,824.06
  5. Step 5: Solve for x
    x = 50,345,807,824.06/255,899.12
  6. Step 6: Final answer
    x = 196,740.84

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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.