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Finding the Fourth Proportional to 133,570.55, 200,037.78 and 77,292.05

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Solution

The fourth proportional to 133,570.55, 200,037.78 and 77,292.05 is: 115,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,570.55 : 200,037.78 = 77,292.05 : x
  2. Step 2: Convert to fraction form
    133,570.55/200,037.78 = 77,292.05/x
  3. Step 3: Cross multiply
    133,570.55x = 200,037.78 × 77,292.05
  4. Step 4: Simplify right side
    133,570.55x = 15,461,330,093.65
  5. Step 5: Solve for x
    x = 15,461,330,093.65/133,570.55
  6. Step 6: Final answer
    x = 115,754.03

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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.