Home / 189,243.75-283,865.67-76,985.04

Finding the Fourth Proportional to 189,243.75, 283,865.67 and 76,985.04

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Solution

The fourth proportional to 189,243.75, 283,865.67 and 76,985.04 is: 115,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,243.75 : 283,865.67 = 76,985.04 : x
  2. Step 2: Convert to fraction form
    189,243.75/283,865.67 = 76,985.04/x
  3. Step 3: Cross multiply
    189,243.75x = 283,865.67 × 76,985.04
  4. Step 4: Simplify right side
    189,243.75x = 21,853,409,959.58
  5. Step 5: Solve for x
    x = 21,853,409,959.58/189,243.75
  6. Step 6: Final answer
    x = 115,477.58

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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.