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Finding the Fourth Proportional to 130,370.88, 179,901.72 and 73,786.08

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Solution

The fourth proportional to 130,370.88, 179,901.72 and 73,786.08 is: 101,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,370.88 : 179,901.72 = 73,786.08 : x
  2. Step 2: Convert to fraction form
    130,370.88/179,901.72 = 73,786.08/x
  3. Step 3: Cross multiply
    130,370.88x = 179,901.72 × 73,786.08
  4. Step 4: Simplify right side
    130,370.88x = 13,274,242,704.06
  5. Step 5: Solve for x
    x = 13,274,242,704.06/130,370.88
  6. Step 6: Final answer
    x = 101,819.08

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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.