Home / 133,629.30-200,055.15-81,011.70

Finding the Fourth Proportional to 133,629.30, 200,055.15 and 81,011.70

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Solution

The fourth proportional to 133,629.30, 200,055.15 and 81,011.70 is: 121,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,629.30 : 200,055.15 = 81,011.70 : x
  2. Step 2: Convert to fraction form
    133,629.30/200,055.15 = 81,011.70/x
  3. Step 3: Cross multiply
    133,629.30x = 200,055.15 × 81,011.70
  4. Step 4: Simplify right side
    133,629.30x = 16,206,807,795.26
  5. Step 5: Solve for x
    x = 16,206,807,795.26/133,629.30
  6. Step 6: Final answer
    x = 121,281.84

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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.