Home / 147,219.70-220,829.63-47,379.90

Finding the Fourth Proportional to 147,219.70, 220,829.63 and 47,379.90

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Solution

The fourth proportional to 147,219.70, 220,829.63 and 47,379.90 is: 71,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,219.70 : 220,829.63 = 47,379.90 : x
  2. Step 2: Convert to fraction form
    147,219.70/220,829.63 = 47,379.90/x
  3. Step 3: Cross multiply
    147,219.70x = 220,829.63 × 47,379.90
  4. Step 4: Simplify right side
    147,219.70x = 10,462,885,786.44
  5. Step 5: Solve for x
    x = 10,462,885,786.44/147,219.70
  6. Step 6: Final answer
    x = 71,069.88

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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.