Home / 236,110.64-325,823.04-128,678.36

Finding the Fourth Proportional to 236,110.64, 325,823.04 and 128,678.36

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Solution

The fourth proportional to 236,110.64, 325,823.04 and 128,678.36 is: 177,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,110.64 : 325,823.04 = 128,678.36 : x
  2. Step 2: Convert to fraction form
    236,110.64/325,823.04 = 128,678.36/x
  3. Step 3: Cross multiply
    236,110.64x = 325,823.04 × 128,678.36
  4. Step 4: Simplify right side
    236,110.64x = 41,926,374,437.41
  5. Step 5: Solve for x
    x = 41,926,374,437.41/236,110.64
  6. Step 6: Final answer
    x = 177,570.88

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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.