Home / 228,786.36-342,976.50-86,532.12

Finding the Fourth Proportional to 228,786.36, 342,976.50 and 86,532.12

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Solution

The fourth proportional to 228,786.36, 342,976.50 and 86,532.12 is: 129,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,786.36 : 342,976.50 = 86,532.12 : x
  2. Step 2: Convert to fraction form
    228,786.36/342,976.50 = 86,532.12/x
  3. Step 3: Cross multiply
    228,786.36x = 342,976.50 × 86,532.12
  4. Step 4: Simplify right side
    228,786.36x = 29,678,483,655.18
  5. Step 5: Solve for x
    x = 29,678,483,655.18/228,786.36
  6. Step 6: Final answer
    x = 129,721.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.