Home / 87,152.36-120,296.54-75,342.56

Finding the Fourth Proportional to 87,152.36, 120,296.54 and 75,342.56

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Solution

The fourth proportional to 87,152.36, 120,296.54 and 75,342.56 is: 103,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,152.36 : 120,296.54 = 75,342.56 : x
  2. Step 2: Convert to fraction form
    87,152.36/120,296.54 = 75,342.56/x
  3. Step 3: Cross multiply
    87,152.36x = 120,296.54 × 75,342.56
  4. Step 4: Simplify right side
    87,152.36x = 9,063,448,869.62
  5. Step 5: Solve for x
    x = 9,063,448,869.62/87,152.36
  6. Step 6: Final answer
    x = 103,995.46

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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.