Home / 130,942.14-180,694.32-76,499.36

Finding the Fourth Proportional to 130,942.14, 180,694.32 and 76,499.36

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Solution

The fourth proportional to 130,942.14, 180,694.32 and 76,499.36 is: 105,565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,942.14 : 180,694.32 = 76,499.36 : x
  2. Step 2: Convert to fraction form
    130,942.14/180,694.32 = 76,499.36/x
  3. Step 3: Cross multiply
    130,942.14x = 180,694.32 × 76,499.36
  4. Step 4: Simplify right side
    130,942.14x = 13,822,999,835.64
  5. Step 5: Solve for x
    x = 13,822,999,835.64/130,942.14
  6. Step 6: Final answer
    x = 105,565.71

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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.