Home / 229,969.37-345,011.46-80,211.81

Finding the Fourth Proportional to 229,969.37, 345,011.46 and 80,211.81

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Solution

The fourth proportional to 229,969.37, 345,011.46 and 80,211.81 is: 120,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,969.37 : 345,011.46 = 80,211.81 : x
  2. Step 2: Convert to fraction form
    229,969.37/345,011.46 = 80,211.81/x
  3. Step 3: Cross multiply
    229,969.37x = 345,011.46 × 80,211.81
  4. Step 4: Simplify right side
    229,969.37x = 27,673,993,677.34
  5. Step 5: Solve for x
    x = 27,673,993,677.34/229,969.37
  6. Step 6: Final answer
    x = 120,337.74

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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.