Home / 129,684.19-179,008.83-75,986.59

Finding the Fourth Proportional to 129,684.19, 179,008.83 and 75,986.59

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Solution

The fourth proportional to 129,684.19, 179,008.83 and 75,986.59 is: 104,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,684.19 : 179,008.83 = 75,986.59 : x
  2. Step 2: Convert to fraction form
    129,684.19/179,008.83 = 75,986.59/x
  3. Step 3: Cross multiply
    129,684.19x = 179,008.83 × 75,986.59
  4. Step 4: Simplify right side
    129,684.19x = 13,602,270,571.59
  5. Step 5: Solve for x
    x = 13,602,270,571.59/129,684.19
  6. Step 6: Final answer
    x = 104,887.65

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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.