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Finding the Fourth Proportional to 147,980.80, 222,003.60 and 73,136.80

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Solution

The fourth proportional to 147,980.80, 222,003.60 and 73,136.80 is: 109,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,980.80 : 222,003.60 = 73,136.80 : x
  2. Step 2: Convert to fraction form
    147,980.80/222,003.60 = 73,136.80/x
  3. Step 3: Cross multiply
    147,980.80x = 222,003.60 × 73,136.80
  4. Step 4: Simplify right side
    147,980.80x = 16,236,632,892.48
  5. Step 5: Solve for x
    x = 16,236,632,892.48/147,980.80
  6. Step 6: Final answer
    x = 109,721.21

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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.