Home / 107,720.08-161,525.44-80,819.98

Finding the Fourth Proportional to 107,720.08, 161,525.44 and 80,819.98

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Solution

The fourth proportional to 107,720.08, 161,525.44 and 80,819.98 is: 121,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,720.08 : 161,525.44 = 80,819.98 : x
  2. Step 2: Convert to fraction form
    107,720.08/161,525.44 = 80,819.98/x
  3. Step 3: Cross multiply
    107,720.08x = 161,525.44 × 80,819.98
  4. Step 4: Simplify right side
    107,720.08x = 13,054,482,527.50
  5. Step 5: Solve for x
    x = 13,054,482,527.50/107,720.08
  6. Step 6: Final answer
    x = 121,188.94

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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.