Home / 100,244.09-138,342.65-54,922.16

Finding the Fourth Proportional to 100,244.09, 138,342.65 and 54,922.16

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Solution

The fourth proportional to 100,244.09, 138,342.65 and 54,922.16 is: 75,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,244.09 : 138,342.65 = 54,922.16 : x
  2. Step 2: Convert to fraction form
    100,244.09/138,342.65 = 54,922.16/x
  3. Step 3: Cross multiply
    100,244.09x = 138,342.65 × 54,922.16
  4. Step 4: Simplify right side
    100,244.09x = 7,598,076,191.80
  5. Step 5: Solve for x
    x = 7,598,076,191.80/100,244.09
  6. Step 6: Final answer
    x = 75,795.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.