Home / 180,988.34-271,573.06-81,219.86

Finding the Fourth Proportional to 180,988.34, 271,573.06 and 81,219.86

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Solution

The fourth proportional to 180,988.34, 271,573.06 and 81,219.86 is: 121,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,988.34 : 271,573.06 = 81,219.86 : x
  2. Step 2: Convert to fraction form
    180,988.34/271,573.06 = 81,219.86/x
  3. Step 3: Cross multiply
    180,988.34x = 271,573.06 × 81,219.86
  4. Step 4: Simplify right side
    180,988.34x = 22,057,125,912.97
  5. Step 5: Solve for x
    x = 22,057,125,912.97/180,988.34
  6. Step 6: Final answer
    x = 121,870.42

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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.