Home / 107,940.16-148,900.80-87,819.52

Finding the Fourth Proportional to 107,940.16, 148,900.80 and 87,819.52

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Solution

The fourth proportional to 107,940.16, 148,900.80 and 87,819.52 is: 121,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,940.16 : 148,900.80 = 87,819.52 : x
  2. Step 2: Convert to fraction form
    107,940.16/148,900.80 = 87,819.52/x
  3. Step 3: Cross multiply
    107,940.16x = 148,900.80 × 87,819.52
  4. Step 4: Simplify right side
    107,940.16x = 13,076,396,783.62
  5. Step 5: Solve for x
    x = 13,076,396,783.62/107,940.16
  6. Step 6: Final answer
    x = 121,144.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.