Home / 128,717.26-192,671.97-88,501.57

Finding the Fourth Proportional to 128,717.26, 192,671.97 and 88,501.57

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Solution

The fourth proportional to 128,717.26, 192,671.97 and 88,501.57 is: 132,474.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,717.26 : 192,671.97 = 88,501.57 : x
  2. Step 2: Convert to fraction form
    128,717.26/192,671.97 = 88,501.57/x
  3. Step 3: Cross multiply
    128,717.26x = 192,671.97 × 88,501.57
  4. Step 4: Simplify right side
    128,717.26x = 17,051,771,839.99
  5. Step 5: Solve for x
    x = 17,051,771,839.99/128,717.26
  6. Step 6: Final answer
    x = 132,474.63

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1.5x scale

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.