Home / 236,118.48-325,839.24-128,687.76

Finding the Fourth Proportional to 236,118.48, 325,839.24 and 128,687.76

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Solution

The fourth proportional to 236,118.48, 325,839.24 and 128,687.76 is: 177,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,118.48 : 325,839.24 = 128,687.76 : x
  2. Step 2: Convert to fraction form
    236,118.48/325,839.24 = 128,687.76/x
  3. Step 3: Cross multiply
    236,118.48x = 325,839.24 × 128,687.76
  4. Step 4: Simplify right side
    236,118.48x = 41,931,521,915.70
  5. Step 5: Solve for x
    x = 41,931,521,915.70/236,118.48
  6. Step 6: Final answer
    x = 177,586.79

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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.