Home / 203,102.92-304,438.28-76,689.35

Finding the Fourth Proportional to 203,102.92, 304,438.28 and 76,689.35

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Solution

The fourth proportional to 203,102.92, 304,438.28 and 76,689.35 is: 114,952.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,102.92 : 304,438.28 = 76,689.35 : x
  2. Step 2: Convert to fraction form
    203,102.92/304,438.28 = 76,689.35/x
  3. Step 3: Cross multiply
    203,102.92x = 304,438.28 × 76,689.35
  4. Step 4: Simplify right side
    203,102.92x = 23,347,173,044.32
  5. Step 5: Solve for x
    x = 23,347,173,044.32/203,102.92
  6. Step 6: Final answer
    x = 114,952.42

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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.