Home / 236,049.60-325,752.12-128,619.72

Finding the Fourth Proportional to 236,049.60, 325,752.12 and 128,619.72

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Solution

The fourth proportional to 236,049.60, 325,752.12 and 128,619.72 is: 177,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,049.60 : 325,752.12 = 128,619.72 : x
  2. Step 2: Convert to fraction form
    236,049.60/325,752.12 = 128,619.72/x
  3. Step 3: Cross multiply
    236,049.60x = 325,752.12 × 128,619.72
  4. Step 4: Simplify right side
    236,049.60x = 41,898,146,463.81
  5. Step 5: Solve for x
    x = 41,898,146,463.81/236,049.60
  6. Step 6: Final answer
    x = 177,497.21

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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.