Home / 125,939.84-173,744.82-74,942.36

Finding the Fourth Proportional to 125,939.84, 173,744.82 and 74,942.36

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Solution

The fourth proportional to 125,939.84, 173,744.82 and 74,942.36 is: 103,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,939.84 : 173,744.82 = 74,942.36 : x
  2. Step 2: Convert to fraction form
    125,939.84/173,744.82 = 74,942.36/x
  3. Step 3: Cross multiply
    125,939.84x = 173,744.82 × 74,942.36
  4. Step 4: Simplify right side
    125,939.84x = 13,020,846,848.58
  5. Step 5: Solve for x
    x = 13,020,846,848.58/125,939.84
  6. Step 6: Final answer
    x = 103,389.42

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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.