Home / 145,830.66-201,253.05-82,171.14

Finding the Fourth Proportional to 145,830.66, 201,253.05 and 82,171.14

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Solution

The fourth proportional to 145,830.66, 201,253.05 and 82,171.14 is: 113,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,830.66 : 201,253.05 = 82,171.14 : x
  2. Step 2: Convert to fraction form
    145,830.66/201,253.05 = 82,171.14/x
  3. Step 3: Cross multiply
    145,830.66x = 201,253.05 × 82,171.14
  4. Step 4: Simplify right side
    145,830.66x = 16,537,192,546.98
  5. Step 5: Solve for x
    x = 16,537,192,546.98/145,830.66
  6. Step 6: Final answer
    x = 113,399.97

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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.