Home / 143,256.80-214,885.20-131,009.60

Finding the Fourth Proportional to 143,256.80, 214,885.20 and 131,009.60

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Solution

The fourth proportional to 143,256.80, 214,885.20 and 131,009.60 is: 196,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,256.80 : 214,885.20 = 131,009.60 : x
  2. Step 2: Convert to fraction form
    143,256.80/214,885.20 = 131,009.60/x
  3. Step 3: Cross multiply
    143,256.80x = 214,885.20 × 131,009.60
  4. Step 4: Simplify right side
    143,256.80x = 28,152,024,097.92
  5. Step 5: Solve for x
    x = 28,152,024,097.92/143,256.80
  6. Step 6: Final answer
    x = 196,514.40

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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.