Home / 152,142.23-228,122.21-72,200.09

Finding the Fourth Proportional to 152,142.23, 228,122.21 and 72,200.09

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Solution

The fourth proportional to 152,142.23, 228,122.21 and 72,200.09 is: 108,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,142.23 : 228,122.21 = 72,200.09 : x
  2. Step 2: Convert to fraction form
    152,142.23/228,122.21 = 72,200.09/x
  3. Step 3: Cross multiply
    152,142.23x = 228,122.21 × 72,200.09
  4. Step 4: Simplify right side
    152,142.23x = 16,470,444,093.00
  5. Step 5: Solve for x
    x = 16,470,444,093.00/152,142.23
  6. Step 6: Final answer
    x = 108,256.89

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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.