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Finding the Fourth Proportional to 135,507.59, 203,228.71 and 56,579.03

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Solution

The fourth proportional to 135,507.59, 203,228.71 and 56,579.03 is: 84,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,507.59 : 203,228.71 = 56,579.03 : x
  2. Step 2: Convert to fraction form
    135,507.59/203,228.71 = 56,579.03/x
  3. Step 3: Cross multiply
    135,507.59x = 203,228.71 × 56,579.03
  4. Step 4: Simplify right side
    135,507.59x = 11,498,481,980.91
  5. Step 5: Solve for x
    x = 11,498,481,980.91/135,507.59
  6. Step 6: Final answer
    x = 84,854.90

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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.