Home / 136,677.47-188,513.07-100,367.49

Finding the Fourth Proportional to 136,677.47, 188,513.07 and 100,367.49

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Solution

The fourth proportional to 136,677.47, 188,513.07 and 100,367.49 is: 138,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,677.47 : 188,513.07 = 100,367.49 : x
  2. Step 2: Convert to fraction form
    136,677.47/188,513.07 = 100,367.49/x
  3. Step 3: Cross multiply
    136,677.47x = 188,513.07 × 100,367.49
  4. Step 4: Simplify right side
    136,677.47x = 18,920,583,668.09
  5. Step 5: Solve for x
    x = 18,920,583,668.09/136,677.47
  6. Step 6: Final answer
    x = 138,432.36

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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.