Home / 137,175.71-189,294.75-75,918.56

Finding the Fourth Proportional to 137,175.71, 189,294.75 and 75,918.56

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Solution

The fourth proportional to 137,175.71, 189,294.75 and 75,918.56 is: 104,763.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,175.71 : 189,294.75 = 75,918.56 : x
  2. Step 2: Convert to fraction form
    137,175.71/189,294.75 = 75,918.56/x
  3. Step 3: Cross multiply
    137,175.71x = 189,294.75 × 75,918.56
  4. Step 4: Simplify right side
    137,175.71x = 14,370,983,889.09
  5. Step 5: Solve for x
    x = 14,370,983,889.09/137,175.71
  6. Step 6: Final answer
    x = 104,763.33

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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.