Home / 259,925.54-389,902.06-72,951.62

Finding the Fourth Proportional to 259,925.54, 389,902.06 and 72,951.62

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Solution

The fourth proportional to 259,925.54, 389,902.06 and 72,951.62 is: 109,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,925.54 : 389,902.06 = 72,951.62 : x
  2. Step 2: Convert to fraction form
    259,925.54/389,902.06 = 72,951.62/x
  3. Step 3: Cross multiply
    259,925.54x = 389,902.06 × 72,951.62
  4. Step 4: Simplify right side
    259,925.54x = 28,443,986,918.34
  5. Step 5: Solve for x
    x = 28,443,986,918.34/259,925.54
  6. Step 6: Final answer
    x = 109,431.29

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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.