Home / 154,768.96-213,583.39-90,236.39

Finding the Fourth Proportional to 154,768.96, 213,583.39 and 90,236.39

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Solution

The fourth proportional to 154,768.96, 213,583.39 and 90,236.39 is: 124,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,768.96 : 213,583.39 = 90,236.39 : x
  2. Step 2: Convert to fraction form
    154,768.96/213,583.39 = 90,236.39/x
  3. Step 3: Cross multiply
    154,768.96x = 213,583.39 × 90,236.39
  4. Step 4: Simplify right side
    154,768.96x = 19,272,994,385.93
  5. Step 5: Solve for x
    x = 19,272,994,385.93/154,768.96
  6. Step 6: Final answer
    x = 124,527.52

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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.