Home / 136,661.28-188,592.86-76,230.36

Finding the Fourth Proportional to 136,661.28, 188,592.86 and 76,230.36

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Solution

The fourth proportional to 136,661.28, 188,592.86 and 76,230.36 is: 105,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,661.28 : 188,592.86 = 76,230.36 : x
  2. Step 2: Convert to fraction form
    136,661.28/188,592.86 = 76,230.36/x
  3. Step 3: Cross multiply
    136,661.28x = 188,592.86 × 76,230.36
  4. Step 4: Simplify right side
    136,661.28x = 14,376,501,611.23
  5. Step 5: Solve for x
    x = 14,376,501,611.23/136,661.28
  6. Step 6: Final answer
    x = 105,198.06

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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.