Home / 281,247.82-421,915.56-91,664.19

Finding the Fourth Proportional to 281,247.82, 421,915.56 and 91,664.19

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Solution

The fourth proportional to 281,247.82, 421,915.56 and 91,664.19 is: 137,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,247.82 : 421,915.56 = 91,664.19 : x
  2. Step 2: Convert to fraction form
    281,247.82/421,915.56 = 91,664.19/x
  3. Step 3: Cross multiply
    281,247.82x = 421,915.56 × 91,664.19
  4. Step 4: Simplify right side
    281,247.82x = 38,674,549,749.82
  5. Step 5: Solve for x
    x = 38,674,549,749.82/281,247.82
  6. Step 6: Final answer
    x = 137,510.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.