Home / 106,787.36-147,354-59,040.96

Finding the Fourth Proportional to 106,787.36, 147,354 and 59,040.96

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Solution

The fourth proportional to 106,787.36, 147,354 and 59,040.96 is: 81,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,787.36 : 147,354 = 59,040.96 : x
  2. Step 2: Convert to fraction form
    106,787.36/147,354 = 59,040.96/x
  3. Step 3: Cross multiply
    106,787.36x = 147,354 × 59,040.96
  4. Step 4: Simplify right side
    106,787.36x = 8,699,921,619.84
  5. Step 5: Solve for x
    x = 8,699,921,619.84/106,787.36
  6. Step 6: Final answer
    x = 81,469.58

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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.