Home / 102,675.21-154,012.72-38,645.31

Finding the Fourth Proportional to 102,675.21, 154,012.72 and 38,645.31

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Solution

The fourth proportional to 102,675.21, 154,012.72 and 38,645.31 is: 57,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,675.21 : 154,012.72 = 38,645.31 : x
  2. Step 2: Convert to fraction form
    102,675.21/154,012.72 = 38,645.31/x
  3. Step 3: Cross multiply
    102,675.21x = 154,012.72 × 38,645.31
  4. Step 4: Simplify right side
    102,675.21x = 5,951,869,211.73
  5. Step 5: Solve for x
    x = 5,951,869,211.73/102,675.21
  6. Step 6: Final answer
    x = 57,967.93

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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.