Home / 115,266.12-172,899.36-75,998.64

Finding the Fourth Proportional to 115,266.12, 172,899.36 and 75,998.64

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Solution

The fourth proportional to 115,266.12, 172,899.36 and 75,998.64 is: 113,998.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,266.12 : 172,899.36 = 75,998.64 : x
  2. Step 2: Convert to fraction form
    115,266.12/172,899.36 = 75,998.64/x
  3. Step 3: Cross multiply
    115,266.12x = 172,899.36 × 75,998.64
  4. Step 4: Simplify right side
    115,266.12x = 13,140,116,216.87
  5. Step 5: Solve for x
    x = 13,140,116,216.87/115,266.12
  6. Step 6: Final answer
    x = 113,998.08

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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.