Home / 230,447.07-345,670.20-90,107.28

Finding the Fourth Proportional to 230,447.07, 345,670.20 and 90,107.28

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Solution

The fourth proportional to 230,447.07, 345,670.20 and 90,107.28 is: 135,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,447.07 : 345,670.20 = 90,107.28 : x
  2. Step 2: Convert to fraction form
    230,447.07/345,670.20 = 90,107.28/x
  3. Step 3: Cross multiply
    230,447.07x = 345,670.20 × 90,107.28
  4. Step 4: Simplify right side
    230,447.07x = 31,147,401,499.06
  5. Step 5: Solve for x
    x = 31,147,401,499.06/230,447.07
  6. Step 6: Final answer
    x = 135,160.76

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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.