Home / 104,463.20-156,721.82-45,285.20

Finding the Fourth Proportional to 104,463.20, 156,721.82 and 45,285.20

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Solution

The fourth proportional to 104,463.20, 156,721.82 and 45,285.20 is: 67,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,463.20 : 156,721.82 = 45,285.20 : x
  2. Step 2: Convert to fraction form
    104,463.20/156,721.82 = 45,285.20/x
  3. Step 3: Cross multiply
    104,463.20x = 156,721.82 × 45,285.20
  4. Step 4: Simplify right side
    104,463.20x = 7,097,178,963.06
  5. Step 5: Solve for x
    x = 7,097,178,963.06/104,463.20
  6. Step 6: Final answer
    x = 67,939.51

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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.