Home / 147,381.45-221,115.23-47,539.43

Finding the Fourth Proportional to 147,381.45, 221,115.23 and 47,539.43

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Solution

The fourth proportional to 147,381.45, 221,115.23 and 47,539.43 is: 71,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,381.45 : 221,115.23 = 47,539.43 : x
  2. Step 2: Convert to fraction form
    147,381.45/221,115.23 = 47,539.43/x
  3. Step 3: Cross multiply
    147,381.45x = 221,115.23 × 47,539.43
  4. Step 4: Simplify right side
    147,381.45x = 10,511,691,662.70
  5. Step 5: Solve for x
    x = 10,511,691,662.70/147,381.45
  6. Step 6: Final answer
    x = 71,323.03

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1.5x scale

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.