Home / 130,502.30-180,105.82-73,151.37

Finding the Fourth Proportional to 130,502.30, 180,105.82 and 73,151.37

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Solution

The fourth proportional to 130,502.30, 180,105.82 and 73,151.37 is: 100,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,502.30 : 180,105.82 = 73,151.37 : x
  2. Step 2: Convert to fraction form
    130,502.30/180,105.82 = 73,151.37/x
  3. Step 3: Cross multiply
    130,502.30x = 180,105.82 × 73,151.37
  4. Step 4: Simplify right side
    130,502.30x = 13,174,986,619.70
  5. Step 5: Solve for x
    x = 13,174,986,619.70/130,502.30
  6. Step 6: Final answer
    x = 100,955.97

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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.