Home / 106,732.43-147,358.69-66,505.30

Finding the Fourth Proportional to 106,732.43, 147,358.69 and 66,505.30

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Solution

The fourth proportional to 106,732.43, 147,358.69 and 66,505.30 is: 91,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,732.43 : 147,358.69 = 66,505.30 : x
  2. Step 2: Convert to fraction form
    106,732.43/147,358.69 = 66,505.30/x
  3. Step 3: Cross multiply
    106,732.43x = 147,358.69 × 66,505.30
  4. Step 4: Simplify right side
    106,732.43x = 9,800,134,554.38
  5. Step 5: Solve for x
    x = 9,800,134,554.38/106,732.43
  6. Step 6: Final answer
    x = 91,819.65

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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.