Home / 107,434.20-161,151.30-106,656.60

Finding the Fourth Proportional to 107,434.20, 161,151.30 and 106,656.60

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Solution

The fourth proportional to 107,434.20, 161,151.30 and 106,656.60 is: 159,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,434.20 : 161,151.30 = 106,656.60 : x
  2. Step 2: Convert to fraction form
    107,434.20/161,151.30 = 106,656.60/x
  3. Step 3: Cross multiply
    107,434.20x = 161,151.30 × 106,656.60
  4. Step 4: Simplify right side
    107,434.20x = 17,187,849,743.58
  5. Step 5: Solve for x
    x = 17,187,849,743.58/107,434.20
  6. Step 6: Final answer
    x = 159,984.90

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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.