Home / 147,020.21-220,503.94-38,950.30

Finding the Fourth Proportional to 147,020.21, 220,503.94 and 38,950.30

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Solution

The fourth proportional to 147,020.21, 220,503.94 and 38,950.30 is: 58,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,020.21 : 220,503.94 = 38,950.30 : x
  2. Step 2: Convert to fraction form
    147,020.21/220,503.94 = 38,950.30/x
  3. Step 3: Cross multiply
    147,020.21x = 220,503.94 × 38,950.30
  4. Step 4: Simplify right side
    147,020.21x = 8,588,693,965.55
  5. Step 5: Solve for x
    x = 8,588,693,965.55/147,020.21
  6. Step 6: Final answer
    x = 58,418.46

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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.