Home / 105,787.25-145,986.55-58,040.79

Finding the Fourth Proportional to 105,787.25, 145,986.55 and 58,040.79

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Solution

The fourth proportional to 105,787.25, 145,986.55 and 58,040.79 is: 80,096.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,787.25 : 145,986.55 = 58,040.79 : x
  2. Step 2: Convert to fraction form
    105,787.25/145,986.55 = 58,040.79/x
  3. Step 3: Cross multiply
    105,787.25x = 145,986.55 × 58,040.79
  4. Step 4: Simplify right side
    105,787.25x = 8,473,174,820.00
  5. Step 5: Solve for x
    x = 8,473,174,820.00/105,787.25
  6. Step 6: Final answer
    x = 80,096.37

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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.