Home / 156,859.08-216,465.62-85,238.93

Finding the Fourth Proportional to 156,859.08, 216,465.62 and 85,238.93

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Solution

The fourth proportional to 156,859.08, 216,465.62 and 85,238.93 is: 117,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,859.08 : 216,465.62 = 85,238.93 : x
  2. Step 2: Convert to fraction form
    156,859.08/216,465.62 = 85,238.93/x
  3. Step 3: Cross multiply
    156,859.08x = 216,465.62 × 85,238.93
  4. Step 4: Simplify right side
    156,859.08x = 18,451,297,945.56
  5. Step 5: Solve for x
    x = 18,451,297,945.56/156,859.08
  6. Step 6: Final answer
    x = 117,629.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.