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Finding the Fourth Proportional to 130,324.80, 179,848.80 and 73,747.20

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Solution

The fourth proportional to 130,324.80, 179,848.80 and 73,747.20 is: 101,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,324.80 : 179,848.80 = 73,747.20 : x
  2. Step 2: Convert to fraction form
    130,324.80/179,848.80 = 73,747.20/x
  3. Step 3: Cross multiply
    130,324.80x = 179,848.80 × 73,747.20
  4. Step 4: Simplify right side
    130,324.80x = 13,263,345,423.36
  5. Step 5: Solve for x
    x = 13,263,345,423.36/130,324.80
  6. Step 6: Final answer
    x = 101,771.46

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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.