Home / 128,263.48-177,024.92-82,951.56

Finding the Fourth Proportional to 128,263.48, 177,024.92 and 82,951.56

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Solution

The fourth proportional to 128,263.48, 177,024.92 and 82,951.56 is: 114,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,263.48 : 177,024.92 = 82,951.56 : x
  2. Step 2: Convert to fraction form
    128,263.48/177,024.92 = 82,951.56/x
  3. Step 3: Cross multiply
    128,263.48x = 177,024.92 × 82,951.56
  4. Step 4: Simplify right side
    128,263.48x = 14,684,493,272.88
  5. Step 5: Solve for x
    x = 14,684,493,272.88/128,263.48
  6. Step 6: Final answer
    x = 114,486.94

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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.