Home / 128,582.46-192,091.68-83,234.34

Finding the Fourth Proportional to 128,582.46, 192,091.68 and 83,234.34

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Solution

The fourth proportional to 128,582.46, 192,091.68 and 83,234.34 is: 124,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,582.46 : 192,091.68 = 83,234.34 : x
  2. Step 2: Convert to fraction form
    128,582.46/192,091.68 = 83,234.34/x
  3. Step 3: Cross multiply
    128,582.46x = 192,091.68 × 83,234.34
  4. Step 4: Simplify right side
    128,582.46x = 15,988,624,204.29
  5. Step 5: Solve for x
    x = 15,988,624,204.29/128,582.46
  6. Step 6: Final answer
    x = 124,345.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.