Home / 128,042.74-192,037.60-38,085.96

Finding the Fourth Proportional to 128,042.74, 192,037.60 and 38,085.96

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Solution

The fourth proportional to 128,042.74, 192,037.60 and 38,085.96 is: 57,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,042.74 : 192,037.60 = 38,085.96 : x
  2. Step 2: Convert to fraction form
    128,042.74/192,037.60 = 38,085.96/x
  3. Step 3: Cross multiply
    128,042.74x = 192,037.60 × 38,085.96
  4. Step 4: Simplify right side
    128,042.74x = 7,313,937,119.84
  5. Step 5: Solve for x
    x = 7,313,937,119.84/128,042.74
  6. Step 6: Final answer
    x = 57,121.06

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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.