Home / 236,000.43-325,679.31-128,570.20

Finding the Fourth Proportional to 236,000.43, 325,679.31 and 128,570.20

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Solution

The fourth proportional to 236,000.43, 325,679.31 and 128,570.20 is: 177,426.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,000.43 : 325,679.31 = 128,570.20 : x
  2. Step 2: Convert to fraction form
    236,000.43/325,679.31 = 128,570.20/x
  3. Step 3: Cross multiply
    236,000.43x = 325,679.31 × 128,570.20
  4. Step 4: Simplify right side
    236,000.43x = 41,872,654,022.56
  5. Step 5: Solve for x
    x = 41,872,654,022.56/236,000.43
  6. Step 6: Final answer
    x = 177,426.18

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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.