Home / 134,899.59-186,183.95-128,920.71

Finding the Fourth Proportional to 134,899.59, 186,183.95 and 128,920.71

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Solution

The fourth proportional to 134,899.59, 186,183.95 and 128,920.71 is: 177,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,899.59 : 186,183.95 = 128,920.71 : x
  2. Step 2: Convert to fraction form
    134,899.59/186,183.95 = 128,920.71/x
  3. Step 3: Cross multiply
    134,899.59x = 186,183.95 × 128,920.71
  4. Step 4: Simplify right side
    134,899.59x = 24,002,966,380.00
  5. Step 5: Solve for x
    x = 24,002,966,380.00/134,899.59
  6. Step 6: Final answer
    x = 177,932.09

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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.