Home / 107,627.10-161,440.65-82,715.10

Finding the Fourth Proportional to 107,627.10, 161,440.65 and 82,715.10

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Solution

The fourth proportional to 107,627.10, 161,440.65 and 82,715.10 is: 124,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,627.10 : 161,440.65 = 82,715.10 : x
  2. Step 2: Convert to fraction form
    107,627.10/161,440.65 = 82,715.10/x
  3. Step 3: Cross multiply
    107,627.10x = 161,440.65 × 82,715.10
  4. Step 4: Simplify right side
    107,627.10x = 13,353,579,508.82
  5. Step 5: Solve for x
    x = 13,353,579,508.82/107,627.10
  6. Step 6: Final answer
    x = 124,072.65

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1.5x scale

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.