Home / 156,965.15-235,447.73-57,128.60

Finding the Fourth Proportional to 156,965.15, 235,447.73 and 57,128.60

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Solution

The fourth proportional to 156,965.15, 235,447.73 and 57,128.60 is: 85,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.15 : 235,447.73 = 57,128.60 : x
  2. Step 2: Convert to fraction form
    156,965.15/235,447.73 = 57,128.60/x
  3. Step 3: Cross multiply
    156,965.15x = 235,447.73 × 57,128.60
  4. Step 4: Simplify right side
    156,965.15x = 13,450,799,188.08
  5. Step 5: Solve for x
    x = 13,450,799,188.08/156,965.15
  6. Step 6: Final answer
    x = 85,692.90

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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.