Home / 145,942.55-201,400.39-82,279.89

Finding the Fourth Proportional to 145,942.55, 201,400.39 and 82,279.89

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Solution

The fourth proportional to 145,942.55, 201,400.39 and 82,279.89 is: 113,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,942.55 : 201,400.39 = 82,279.89 : x
  2. Step 2: Convert to fraction form
    145,942.55/201,400.39 = 82,279.89/x
  3. Step 3: Cross multiply
    145,942.55x = 201,400.39 × 82,279.89
  4. Step 4: Simplify right side
    145,942.55x = 16,571,201,935.16
  5. Step 5: Solve for x
    x = 16,571,201,935.16/145,942.55
  6. Step 6: Final answer
    x = 113,546.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.