Home / 136,716.12-188,667.63-76,283.24

Finding the Fourth Proportional to 136,716.12, 188,667.63 and 76,283.24

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Solution

The fourth proportional to 136,716.12, 188,667.63 and 76,283.24 is: 105,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,716.12 : 188,667.63 = 76,283.24 : x
  2. Step 2: Convert to fraction form
    136,716.12/188,667.63 = 76,283.24/x
  3. Step 3: Cross multiply
    136,716.12x = 188,667.63 × 76,283.24
  4. Step 4: Simplify right side
    136,716.12x = 14,392,177,156.18
  5. Step 5: Solve for x
    x = 14,392,177,156.18/136,716.12
  6. Step 6: Final answer
    x = 105,270.52

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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.