Home / 147,938.20-222,053.10-73,142.80

Finding the Fourth Proportional to 147,938.20, 222,053.10 and 73,142.80

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Solution

The fourth proportional to 147,938.20, 222,053.10 and 73,142.80 is: 109,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,938.20 : 222,053.10 = 73,142.80 : x
  2. Step 2: Convert to fraction form
    147,938.20/222,053.10 = 73,142.80/x
  3. Step 3: Cross multiply
    147,938.20x = 222,053.10 × 73,142.80
  4. Step 4: Simplify right side
    147,938.20x = 16,241,585,482.68
  5. Step 5: Solve for x
    x = 16,241,585,482.68/147,938.20
  6. Step 6: Final answer
    x = 109,786.29

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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.