Home / 156,190.40-234,250.48-71,869.68

Finding the Fourth Proportional to 156,190.40, 234,250.48 and 71,869.68

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Solution

The fourth proportional to 156,190.40, 234,250.48 and 71,869.68 is: 107,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,190.40 : 234,250.48 = 71,869.68 : x
  2. Step 2: Convert to fraction form
    156,190.40/234,250.48 = 71,869.68/x
  3. Step 3: Cross multiply
    156,190.40x = 234,250.48 × 71,869.68
  4. Step 4: Simplify right side
    156,190.40x = 16,835,507,037.45
  5. Step 5: Solve for x
    x = 16,835,507,037.45/156,190.40
  6. Step 6: Final answer
    x = 107,788.36

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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.