Home / 136,427.24-188,262.29-75,171.53

Finding the Fourth Proportional to 136,427.24, 188,262.29 and 75,171.53

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Solution

The fourth proportional to 136,427.24, 188,262.29 and 75,171.53 is: 103,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,427.24 : 188,262.29 = 75,171.53 : x
  2. Step 2: Convert to fraction form
    136,427.24/188,262.29 = 75,171.53/x
  3. Step 3: Cross multiply
    136,427.24x = 188,262.29 × 75,171.53
  4. Step 4: Simplify right side
    136,427.24x = 14,151,965,039.19
  5. Step 5: Solve for x
    x = 14,151,965,039.19/136,427.24
  6. Step 6: Final answer
    x = 103,732.69

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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.