Home / 213,682.07-320,539.96-71,528.18

Finding the Fourth Proportional to 213,682.07, 320,539.96 and 71,528.18

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Solution

The fourth proportional to 213,682.07, 320,539.96 and 71,528.18 is: 107,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,682.07 : 320,539.96 = 71,528.18 : x
  2. Step 2: Convert to fraction form
    213,682.07/320,539.96 = 71,528.18/x
  3. Step 3: Cross multiply
    213,682.07x = 320,539.96 × 71,528.18
  4. Step 4: Simplify right side
    213,682.07x = 22,927,638,353.37
  5. Step 5: Solve for x
    x = 22,927,638,353.37/213,682.07
  6. Step 6: Final answer
    x = 107,297.90

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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.