Home / 208,529.31-312,745.96-124,313.20

Finding the Fourth Proportional to 208,529.31, 312,745.96 and 124,313.20

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Solution

The fourth proportional to 208,529.31, 312,745.96 and 124,313.20 is: 186,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,529.31 : 312,745.96 = 124,313.20 : x
  2. Step 2: Convert to fraction form
    208,529.31/312,745.96 = 124,313.20/x
  3. Step 3: Cross multiply
    208,529.31x = 312,745.96 × 124,313.20
  4. Step 4: Simplify right side
    208,529.31x = 38,878,451,074.67
  5. Step 5: Solve for x
    x = 38,878,451,074.67/208,529.31
  6. Step 6: Final answer
    x = 186,441.18

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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.