Home / 130,256.33-179,789.09-76,558.59

Finding the Fourth Proportional to 130,256.33, 179,789.09 and 76,558.59

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Solution

The fourth proportional to 130,256.33, 179,789.09 and 76,558.59 is: 105,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,256.33 : 179,789.09 = 76,558.59 : x
  2. Step 2: Convert to fraction form
    130,256.33/179,789.09 = 76,558.59/x
  3. Step 3: Cross multiply
    130,256.33x = 179,789.09 × 76,558.59
  4. Step 4: Simplify right side
    130,256.33x = 13,764,398,844.99
  5. Step 5: Solve for x
    x = 13,764,398,844.99/130,256.33
  6. Step 6: Final answer
    x = 105,671.64

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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.