Home / 236,018.21-325,705.16-128,588.24

Finding the Fourth Proportional to 236,018.21, 325,705.16 and 128,588.24

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Solution

The fourth proportional to 236,018.21, 325,705.16 and 128,588.24 is: 177,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,018.21 : 325,705.16 = 128,588.24 : x
  2. Step 2: Convert to fraction form
    236,018.21/325,705.16 = 128,588.24/x
  3. Step 3: Cross multiply
    236,018.21x = 325,705.16 × 128,588.24
  4. Step 4: Simplify right side
    236,018.21x = 41,881,851,011.85
  5. Step 5: Solve for x
    x = 41,881,851,011.85/236,018.21
  6. Step 6: Final answer
    x = 177,451.78

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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.