Home / 130,301.76-179,824.38-72,939.96

Finding the Fourth Proportional to 130,301.76, 179,824.38 and 72,939.96

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Solution

The fourth proportional to 130,301.76, 179,824.38 and 72,939.96 is: 100,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,301.76 : 179,824.38 = 72,939.96 : x
  2. Step 2: Convert to fraction form
    130,301.76/179,824.38 = 72,939.96/x
  3. Step 3: Cross multiply
    130,301.76x = 179,824.38 × 72,939.96
  4. Step 4: Simplify right side
    130,301.76x = 13,116,383,084.22
  5. Step 5: Solve for x
    x = 13,116,383,084.22/130,301.76
  6. Step 6: Final answer
    x = 100,661.60

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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.