Home / 156,965.90-235,448.85-57,129.35

Finding the Fourth Proportional to 156,965.90, 235,448.85 and 57,129.35

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Solution

The fourth proportional to 156,965.90, 235,448.85 and 57,129.35 is: 85,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.90 : 235,448.85 = 57,129.35 : x
  2. Step 2: Convert to fraction form
    156,965.90/235,448.85 = 57,129.35/x
  3. Step 3: Cross multiply
    156,965.90x = 235,448.85 × 57,129.35
  4. Step 4: Simplify right side
    156,965.90x = 13,451,039,758.75
  5. Step 5: Solve for x
    x = 13,451,039,758.75/156,965.90
  6. Step 6: Final answer
    x = 85,694.03

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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.