Home / 115,170.12-172,776.96-45,045

Finding the Fourth Proportional to 115,170.12, 172,776.96 and 45,045

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Solution

The fourth proportional to 115,170.12, 172,776.96 and 45,045 is: 67,576.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,170.12 : 172,776.96 = 45,045 : x
  2. Step 2: Convert to fraction form
    115,170.12/172,776.96 = 45,045/x
  3. Step 3: Cross multiply
    115,170.12x = 172,776.96 × 45,045
  4. Step 4: Simplify right side
    115,170.12x = 7,782,738,163.20
  5. Step 5: Solve for x
    x = 7,782,738,163.20/115,170.12
  6. Step 6: Final answer
    x = 67,576.02

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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.