Home / 130,231.44-179,742.45-76,516.47

Finding the Fourth Proportional to 130,231.44, 179,742.45 and 76,516.47

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Solution

The fourth proportional to 130,231.44, 179,742.45 and 76,516.47 is: 105,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,231.44 : 179,742.45 = 76,516.47 : x
  2. Step 2: Convert to fraction form
    130,231.44/179,742.45 = 76,516.47/x
  3. Step 3: Cross multiply
    130,231.44x = 179,742.45 × 76,516.47
  4. Step 4: Simplify right side
    130,231.44x = 13,753,257,783.15
  5. Step 5: Solve for x
    x = 13,753,257,783.15/130,231.44
  6. Step 6: Final answer
    x = 105,606.28

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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.