Home / 154,742.56-213,562-91,096.16

Finding the Fourth Proportional to 154,742.56, 213,562 and 91,096.16

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Solution

The fourth proportional to 154,742.56, 213,562 and 91,096.16 is: 125,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,742.56 : 213,562 = 91,096.16 : x
  2. Step 2: Convert to fraction form
    154,742.56/213,562 = 91,096.16/x
  3. Step 3: Cross multiply
    154,742.56x = 213,562 × 91,096.16
  4. Step 4: Simplify right side
    154,742.56x = 19,454,678,121.92
  5. Step 5: Solve for x
    x = 19,454,678,121.92/154,742.56
  6. Step 6: Final answer
    x = 125,722.87

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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.