Home / 129,784.33-179,054.47-76,049.74

Finding the Fourth Proportional to 129,784.33, 179,054.47 and 76,049.74

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Solution

The fourth proportional to 129,784.33, 179,054.47 and 76,049.74 is: 104,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,784.33 : 179,054.47 = 76,049.74 : x
  2. Step 2: Convert to fraction form
    129,784.33/179,054.47 = 76,049.74/x
  3. Step 3: Cross multiply
    129,784.33x = 179,054.47 × 76,049.74
  4. Step 4: Simplify right side
    129,784.33x = 13,617,045,414.93
  5. Step 5: Solve for x
    x = 13,617,045,414.93/129,784.33
  6. Step 6: Final answer
    x = 104,920.57

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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.