Home / 105,076.73-145,005.40-57,329.93

Finding the Fourth Proportional to 105,076.73, 145,005.40 and 57,329.93

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Solution

The fourth proportional to 105,076.73, 145,005.40 and 57,329.93 is: 79,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,076.73 : 145,005.40 = 57,329.93 : x
  2. Step 2: Convert to fraction form
    105,076.73/145,005.40 = 57,329.93/x
  3. Step 3: Cross multiply
    105,076.73x = 145,005.40 × 57,329.93
  4. Step 4: Simplify right side
    105,076.73x = 8,313,149,431.62
  5. Step 5: Solve for x
    x = 8,313,149,431.62/105,076.73
  6. Step 6: Final answer
    x = 79,115.04

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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.