Home / 136,316.76-188,121.30-74,231.35

Finding the Fourth Proportional to 136,316.76, 188,121.30 and 74,231.35

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Solution

The fourth proportional to 136,316.76, 188,121.30 and 74,231.35 is: 102,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,316.76 : 188,121.30 = 74,231.35 : x
  2. Step 2: Convert to fraction form
    136,316.76/188,121.30 = 74,231.35/x
  3. Step 3: Cross multiply
    136,316.76x = 188,121.30 × 74,231.35
  4. Step 4: Simplify right side
    136,316.76x = 13,964,498,062.76
  5. Step 5: Solve for x
    x = 13,964,498,062.76/136,316.76
  6. Step 6: Final answer
    x = 102,441.53

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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.