Home / 136,315.32-188,272.58-90,914.41

Finding the Fourth Proportional to 136,315.32, 188,272.58 and 90,914.41

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Solution

The fourth proportional to 136,315.32, 188,272.58 and 90,914.41 is: 125,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,315.32 : 188,272.58 = 90,914.41 : x
  2. Step 2: Convert to fraction form
    136,315.32/188,272.58 = 90,914.41/x
  3. Step 3: Cross multiply
    136,315.32x = 188,272.58 × 90,914.41
  4. Step 4: Simplify right side
    136,315.32x = 17,116,690,529.88
  5. Step 5: Solve for x
    x = 17,116,690,529.88/136,315.32
  6. Step 6: Final answer
    x = 125,566.89

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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.