Home / 129,951.09-179,334-76,237.02

Finding the Fourth Proportional to 129,951.09, 179,334 and 76,237.02

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Solution

The fourth proportional to 129,951.09, 179,334 and 76,237.02 is: 105,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,951.09 : 179,334 = 76,237.02 : x
  2. Step 2: Convert to fraction form
    129,951.09/179,334 = 76,237.02/x
  3. Step 3: Cross multiply
    129,951.09x = 179,334 × 76,237.02
  4. Step 4: Simplify right side
    129,951.09x = 13,671,889,744.68
  5. Step 5: Solve for x
    x = 13,671,889,744.68/129,951.09
  6. Step 6: Final answer
    x = 105,207.97

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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.