Home / 133,037.20-199,580.10-54,159.40

Finding the Fourth Proportional to 133,037.20, 199,580.10 and 54,159.40

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Solution

The fourth proportional to 133,037.20, 199,580.10 and 54,159.40 is: 81,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,037.20 : 199,580.10 = 54,159.40 : x
  2. Step 2: Convert to fraction form
    133,037.20/199,580.10 = 54,159.40/x
  3. Step 3: Cross multiply
    133,037.20x = 199,580.10 × 54,159.40
  4. Step 4: Simplify right side
    133,037.20x = 10,809,138,467.94
  5. Step 5: Solve for x
    x = 10,809,138,467.94/133,037.20
  6. Step 6: Final answer
    x = 81,248.99

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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.