Home / 208,621.63-312,971.40-94,777.43

Finding the Fourth Proportional to 208,621.63, 312,971.40 and 94,777.43

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Solution

The fourth proportional to 208,621.63, 312,971.40 and 94,777.43 is: 142,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,621.63 : 312,971.40 = 94,777.43 : x
  2. Step 2: Convert to fraction form
    208,621.63/312,971.40 = 94,777.43/x
  3. Step 3: Cross multiply
    208,621.63x = 312,971.40 × 94,777.43
  4. Step 4: Simplify right side
    208,621.63x = 29,662,624,955.50
  5. Step 5: Solve for x
    x = 29,662,624,955.50/208,621.63
  6. Step 6: Final answer
    x = 142,183.84

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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.