Home / 104,231.12-143,888.53-69,835.07

Finding the Fourth Proportional to 104,231.12, 143,888.53 and 69,835.07

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Solution

The fourth proportional to 104,231.12, 143,888.53 and 69,835.07 is: 96,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,231.12 : 143,888.53 = 69,835.07 : x
  2. Step 2: Convert to fraction form
    104,231.12/143,888.53 = 69,835.07/x
  3. Step 3: Cross multiply
    104,231.12x = 143,888.53 × 69,835.07
  4. Step 4: Simplify right side
    104,231.12x = 10,048,465,749.88
  5. Step 5: Solve for x
    x = 10,048,465,749.88/104,231.12
  6. Step 6: Final answer
    x = 96,405.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.