Home / 140,998.96-211,431.48-81,852.76

Finding the Fourth Proportional to 140,998.96, 211,431.48 and 81,852.76

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Solution

The fourth proportional to 140,998.96, 211,431.48 and 81,852.76 is: 122,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,998.96 : 211,431.48 = 81,852.76 : x
  2. Step 2: Convert to fraction form
    140,998.96/211,431.48 = 81,852.76/x
  3. Step 3: Cross multiply
    140,998.96x = 211,431.48 × 81,852.76
  4. Step 4: Simplify right side
    140,998.96x = 17,306,250,188.88
  5. Step 5: Solve for x
    x = 17,306,250,188.88/140,998.96
  6. Step 6: Final answer
    x = 122,740.27

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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.