Home / 105,429.40-158,144.10-26,546.20

Finding the Fourth Proportional to 105,429.40, 158,144.10 and 26,546.20

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Solution

The fourth proportional to 105,429.40, 158,144.10 and 26,546.20 is: 39,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,429.40 : 158,144.10 = 26,546.20 : x
  2. Step 2: Convert to fraction form
    105,429.40/158,144.10 = 26,546.20/x
  3. Step 3: Cross multiply
    105,429.40x = 158,144.10 × 26,546.20
  4. Step 4: Simplify right side
    105,429.40x = 4,198,124,907.42
  5. Step 5: Solve for x
    x = 4,198,124,907.42/105,429.40
  6. Step 6: Final answer
    x = 39,819.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.