Home / 106,509,301.20-159,763,951.80-87,361,678.80

Finding the Fourth Proportional to 106,509,301.20, 159,763,951.80 and 87,361,678.80

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Solution

The fourth proportional to 106,509,301.20, 159,763,951.80 and 87,361,678.80 is: 131,042,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,509,301.20 : 159,763,951.80 = 87,361,678.80 : x
  2. Step 2: Convert to fraction form
    106,509,301.20/159,763,951.80 = 87,361,678.80/x
  3. Step 3: Cross multiply
    106,509,301.20x = 159,763,951.80 × 87,361,678.80
  4. Step 4: Simplify right side
    106,509,301.20x = 13,957,247,040,970,282
  5. Step 5: Solve for x
    x = 13,957,247,040,970,282/106,509,301.20
  6. Step 6: Final answer
    x = 131,042,518.20

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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.