Home / 128,652.33-177,143.99-114,287.16

Finding the Fourth Proportional to 128,652.33, 177,143.99 and 114,287.16

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Solution

The fourth proportional to 128,652.33, 177,143.99 and 114,287.16 is: 157,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,652.33 : 177,143.99 = 114,287.16 : x
  2. Step 2: Convert to fraction form
    128,652.33/177,143.99 = 114,287.16/x
  3. Step 3: Cross multiply
    128,652.33x = 177,143.99 × 114,287.16
  4. Step 4: Simplify right side
    128,652.33x = 20,245,282,956.73
  5. Step 5: Solve for x
    x = 20,245,282,956.73/128,652.33
  6. Step 6: Final answer
    x = 157,364.29

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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.