Home / 115,260.12-172,890.36-75,992.64

Finding the Fourth Proportional to 115,260.12, 172,890.36 and 75,992.64

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Solution

The fourth proportional to 115,260.12, 172,890.36 and 75,992.64 is: 113,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,260.12 : 172,890.36 = 75,992.64 : x
  2. Step 2: Convert to fraction form
    115,260.12/172,890.36 = 75,992.64/x
  3. Step 3: Cross multiply
    115,260.12x = 172,890.36 × 75,992.64
  4. Step 4: Simplify right side
    115,260.12x = 13,138,394,886.95
  5. Step 5: Solve for x
    x = 13,138,394,886.95/115,260.12
  6. Step 6: Final answer
    x = 113,989.08

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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.