Home / 103,910.06-155,583.54-53,885.25

Finding the Fourth Proportional to 103,910.06, 155,583.54 and 53,885.25

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Solution

The fourth proportional to 103,910.06, 155,583.54 and 53,885.25 is: 80,681.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,910.06 : 155,583.54 = 53,885.25 : x
  2. Step 2: Convert to fraction form
    103,910.06/155,583.54 = 53,885.25/x
  3. Step 3: Cross multiply
    103,910.06x = 155,583.54 × 53,885.25
  4. Step 4: Simplify right side
    103,910.06x = 8,383,657,948.79
  5. Step 5: Solve for x
    x = 8,383,657,948.79/103,910.06
  6. Step 6: Final answer
    x = 80,681.87

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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.