Home / 125,744.47-173,497-79,787.36

Finding the Fourth Proportional to 125,744.47, 173,497 and 79,787.36

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Solution

The fourth proportional to 125,744.47, 173,497 and 79,787.36 is: 110,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,744.47 : 173,497 = 79,787.36 : x
  2. Step 2: Convert to fraction form
    125,744.47/173,497 = 79,787.36/x
  3. Step 3: Cross multiply
    125,744.47x = 173,497 × 79,787.36
  4. Step 4: Simplify right side
    125,744.47x = 13,842,867,597.92
  5. Step 5: Solve for x
    x = 13,842,867,597.92/125,744.47
  6. Step 6: Final answer
    x = 110,087.29

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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.