Home / 115,129.24-172,811.64-95,074.88

Finding the Fourth Proportional to 115,129.24, 172,811.64 and 95,074.88

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Solution

The fourth proportional to 115,129.24, 172,811.64 and 95,074.88 is: 142,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,129.24 : 172,811.64 = 95,074.88 : x
  2. Step 2: Convert to fraction form
    115,129.24/172,811.64 = 95,074.88/x
  3. Step 3: Cross multiply
    115,129.24x = 172,811.64 × 95,074.88
  4. Step 4: Simplify right side
    115,129.24x = 16,430,045,935.60
  5. Step 5: Solve for x
    x = 16,430,045,935.60/115,129.24
  6. Step 6: Final answer
    x = 142,709.58

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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.