Home / 220,702.16-331,086.18-102,385.46

Finding the Fourth Proportional to 220,702.16, 331,086.18 and 102,385.46

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Solution

The fourth proportional to 220,702.16, 331,086.18 and 102,385.46 is: 153,593.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,702.16 : 331,086.18 = 102,385.46 : x
  2. Step 2: Convert to fraction form
    220,702.16/331,086.18 = 102,385.46/x
  3. Step 3: Cross multiply
    220,702.16x = 331,086.18 × 102,385.46
  4. Step 4: Simplify right side
    220,702.16x = 33,898,410,838.94
  5. Step 5: Solve for x
    x = 33,898,410,838.94/220,702.16
  6. Step 6: Final answer
    x = 153,593.47

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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.