Home / 107,787.74-147,669.90-103,747.43

Finding the Fourth Proportional to 107,787.74, 147,669.90 and 103,747.43

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Solution

The fourth proportional to 107,787.74, 147,669.90 and 103,747.43 is: 142,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,787.74 : 147,669.90 = 103,747.43 : x
  2. Step 2: Convert to fraction form
    107,787.74/147,669.90 = 103,747.43/x
  3. Step 3: Cross multiply
    107,787.74x = 147,669.90 × 103,747.43
  4. Step 4: Simplify right side
    107,787.74x = 15,320,372,613.36
  5. Step 5: Solve for x
    x = 15,320,372,613.36/107,787.74
  6. Step 6: Final answer
    x = 142,134.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.