Home / 136,743.75-188,715.84-76,326.15

Finding the Fourth Proportional to 136,743.75, 188,715.84 and 76,326.15

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Solution

The fourth proportional to 136,743.75, 188,715.84 and 76,326.15 is: 105,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,743.75 : 188,715.84 = 76,326.15 : x
  2. Step 2: Convert to fraction form
    136,743.75/188,715.84 = 76,326.15/x
  3. Step 3: Cross multiply
    136,743.75x = 188,715.84 × 76,326.15
  4. Step 4: Simplify right side
    136,743.75x = 14,403,953,511.22
  5. Step 5: Solve for x
    x = 14,403,953,511.22/136,743.75
  6. Step 6: Final answer
    x = 105,335.37

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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.