Home / 156,919.15-235,378.73-137,236.15

Finding the Fourth Proportional to 156,919.15, 235,378.73 and 137,236.15

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Solution

The fourth proportional to 156,919.15, 235,378.73 and 137,236.15 is: 205,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.15 : 235,378.73 = 137,236.15 : x
  2. Step 2: Convert to fraction form
    156,919.15/235,378.73 = 137,236.15/x
  3. Step 3: Cross multiply
    156,919.15x = 235,378.73 × 137,236.15
  4. Step 4: Simplify right side
    156,919.15x = 32,302,470,697.09
  5. Step 5: Solve for x
    x = 32,302,470,697.09/156,919.15
  6. Step 6: Final answer
    x = 205,854.23

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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.