Home / 104,490.10-156,654.78-51,858.76

Finding the Fourth Proportional to 104,490.10, 156,654.78 and 51,858.76

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Solution

The fourth proportional to 104,490.10, 156,654.78 and 51,858.76 is: 77,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490.10 : 156,654.78 = 51,858.76 : x
  2. Step 2: Convert to fraction form
    104,490.10/156,654.78 = 51,858.76/x
  3. Step 3: Cross multiply
    104,490.10x = 156,654.78 × 51,858.76
  4. Step 4: Simplify right side
    104,490.10x = 8,123,922,638.87
  5. Step 5: Solve for x
    x = 8,123,922,638.87/104,490.10
  6. Step 6: Final answer
    x = 77,748.25

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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.