Home / 128,733.57-192,695.76-89,170.74

Finding the Fourth Proportional to 128,733.57, 192,695.76 and 89,170.74

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Solution

The fourth proportional to 128,733.57, 192,695.76 and 89,170.74 is: 133,475.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,733.57 : 192,695.76 = 89,170.74 : x
  2. Step 2: Convert to fraction form
    128,733.57/192,695.76 = 89,170.74/x
  3. Step 3: Cross multiply
    128,733.57x = 192,695.76 × 89,170.74
  4. Step 4: Simplify right side
    128,733.57x = 17,182,823,514.06
  5. Step 5: Solve for x
    x = 17,182,823,514.06/128,733.57
  6. Step 6: Final answer
    x = 133,475.86

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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.