Home / 128,834.64-193,222.80-58,734

Finding the Fourth Proportional to 128,834.64, 193,222.80 and 58,734

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Solution

The fourth proportional to 128,834.64, 193,222.80 and 58,734 is: 88,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,834.64 : 193,222.80 = 58,734 : x
  2. Step 2: Convert to fraction form
    128,834.64/193,222.80 = 58,734/x
  3. Step 3: Cross multiply
    128,834.64x = 193,222.80 × 58,734
  4. Step 4: Simplify right side
    128,834.64x = 11,348,747,935.20
  5. Step 5: Solve for x
    x = 11,348,747,935.20/128,834.64
  6. Step 6: Final answer
    x = 88,087.71

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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.