Home / 156,965.06-217,182.24-136,863.81

Finding the Fourth Proportional to 156,965.06, 217,182.24 and 136,863.81

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Solution

The fourth proportional to 156,965.06, 217,182.24 and 136,863.81 is: 189,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.06 : 217,182.24 = 136,863.81 : x
  2. Step 2: Convert to fraction form
    156,965.06/217,182.24 = 136,863.81/x
  3. Step 3: Cross multiply
    156,965.06x = 217,182.24 × 136,863.81
  4. Step 4: Simplify right side
    156,965.06x = 29,724,388,830.73
  5. Step 5: Solve for x
    x = 29,724,388,830.73/156,965.06
  6. Step 6: Final answer
    x = 189,369.46

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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.