Home / 137,056.74-189,161.68-79,729.33

Finding the Fourth Proportional to 137,056.74, 189,161.68 and 79,729.33

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Solution

The fourth proportional to 137,056.74, 189,161.68 and 79,729.33 is: 110,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,056.74 : 189,161.68 = 79,729.33 : x
  2. Step 2: Convert to fraction form
    137,056.74/189,161.68 = 79,729.33/x
  3. Step 3: Cross multiply
    137,056.74x = 189,161.68 × 79,729.33
  4. Step 4: Simplify right side
    137,056.74x = 15,081,734,239.03
  5. Step 5: Solve for x
    x = 15,081,734,239.03/137,056.74
  6. Step 6: Final answer
    x = 110,040.08

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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.