Home / 147,986.80-222,012.60-73,142.80

Finding the Fourth Proportional to 147,986.80, 222,012.60 and 73,142.80

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Solution

The fourth proportional to 147,986.80, 222,012.60 and 73,142.80 is: 109,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,986.80 : 222,012.60 = 73,142.80 : x
  2. Step 2: Convert to fraction form
    147,986.80/222,012.60 = 73,142.80/x
  3. Step 3: Cross multiply
    147,986.80x = 222,012.60 × 73,142.80
  4. Step 4: Simplify right side
    147,986.80x = 16,238,623,199.28
  5. Step 5: Solve for x
    x = 16,238,623,199.28/147,986.80
  6. Step 6: Final answer
    x = 109,730.21

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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.