Home / 118,489.48-163,515.62-68,188.52

Finding the Fourth Proportional to 118,489.48, 163,515.62 and 68,188.52

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Solution

The fourth proportional to 118,489.48, 163,515.62 and 68,188.52 is: 94,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,489.48 : 163,515.62 = 68,188.52 : x
  2. Step 2: Convert to fraction form
    118,489.48/163,515.62 = 68,188.52/x
  3. Step 3: Cross multiply
    118,489.48x = 163,515.62 × 68,188.52
  4. Step 4: Simplify right side
    118,489.48x = 11,149,888,124.68
  5. Step 5: Solve for x
    x = 11,149,888,124.68/118,489.48
  6. Step 6: Final answer
    x = 94,100.24

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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.