Home / 160,145,018.72-240,131,112.88-72,658,786.72

Finding the Fourth Proportional to 160,145,018.72, 240,131,112.88 and 72,658,786.72

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Solution

The fourth proportional to 160,145,018.72, 240,131,112.88 and 72,658,786.72 is: 108,948,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,145,018.72 : 240,131,112.88 = 72,658,786.72 : x
  2. Step 2: Convert to fraction form
    160,145,018.72/240,131,112.88 = 72,658,786.72/x
  3. Step 3: Cross multiply
    160,145,018.72x = 240,131,112.88 × 72,658,786.72
  4. Step 4: Simplify right side
    160,145,018.72x = 17,447,635,315,584,164
  5. Step 5: Solve for x
    x = 17,447,635,315,584,164/160,145,018.72
  6. Step 6: Final answer
    x = 108,948,972.97

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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.