Home / 230,346.09-345,619.53-80,693.73

Finding the Fourth Proportional to 230,346.09, 345,619.53 and 80,693.73

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Solution

The fourth proportional to 230,346.09, 345,619.53 and 80,693.73 is: 121,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,346.09 : 345,619.53 = 80,693.73 : x
  2. Step 2: Convert to fraction form
    230,346.09/345,619.53 = 80,693.73/x
  3. Step 3: Cross multiply
    230,346.09x = 345,619.53 × 80,693.73
  4. Step 4: Simplify right side
    230,346.09x = 27,889,329,036.55
  5. Step 5: Solve for x
    x = 27,889,329,036.55/230,346.09
  6. Step 6: Final answer
    x = 121,075.76

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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.