Home / 136,655.39-188,584.71-76,224.47

Finding the Fourth Proportional to 136,655.39, 188,584.71 and 76,224.47

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Solution

The fourth proportional to 136,655.39, 188,584.71 and 76,224.47 is: 105,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,655.39 : 188,584.71 = 76,224.47 : x
  2. Step 2: Convert to fraction form
    136,655.39/188,584.71 = 76,224.47/x
  3. Step 3: Cross multiply
    136,655.39x = 188,584.71 × 76,224.47
  4. Step 4: Simplify right side
    136,655.39x = 14,374,769,569.85
  5. Step 5: Solve for x
    x = 14,374,769,569.85/136,655.39
  6. Step 6: Final answer
    x = 105,189.92

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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.