Home / 136,145.03-187,869.26-75,715.79

Finding the Fourth Proportional to 136,145.03, 187,869.26 and 75,715.79

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Solution

The fourth proportional to 136,145.03, 187,869.26 and 75,715.79 is: 104,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,145.03 : 187,869.26 = 75,715.79 : x
  2. Step 2: Convert to fraction form
    136,145.03/187,869.26 = 75,715.79/x
  3. Step 3: Cross multiply
    136,145.03x = 187,869.26 × 75,715.79
  4. Step 4: Simplify right side
    136,145.03x = 14,224,669,059.04
  5. Step 5: Solve for x
    x = 14,224,669,059.04/136,145.03
  6. Step 6: Final answer
    x = 104,481.74

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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.