Home / 100,836.24-139,004.82-64,533.66

Finding the Fourth Proportional to 100,836.24, 139,004.82 and 64,533.66

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Solution

The fourth proportional to 100,836.24, 139,004.82 and 64,533.66 is: 88,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,836.24 : 139,004.82 = 64,533.66 : x
  2. Step 2: Convert to fraction form
    100,836.24/139,004.82 = 64,533.66/x
  3. Step 3: Cross multiply
    100,836.24x = 139,004.82 × 64,533.66
  4. Step 4: Simplify right side
    100,836.24x = 8,970,489,792.24
  5. Step 5: Solve for x
    x = 8,970,489,792.24/100,836.24
  6. Step 6: Final answer
    x = 88,960.97

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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.