Home / 130,511.21-180,105.81-73,922.59

Finding the Fourth Proportional to 130,511.21, 180,105.81 and 73,922.59

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Solution

The fourth proportional to 130,511.21, 180,105.81 and 73,922.59 is: 102,013.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,511.21 : 180,105.81 = 73,922.59 : x
  2. Step 2: Convert to fraction form
    130,511.21/180,105.81 = 73,922.59/x
  3. Step 3: Cross multiply
    130,511.21x = 180,105.81 × 73,922.59
  4. Step 4: Simplify right side
    130,511.21x = 13,313,887,048.72
  5. Step 5: Solve for x
    x = 13,313,887,048.72/130,511.21
  6. Step 6: Final answer
    x = 102,013.36

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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.