Home / 256,134.07-384,146.09-76,176.17

Finding the Fourth Proportional to 256,134.07, 384,146.09 and 76,176.17

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Solution

The fourth proportional to 256,134.07, 384,146.09 and 76,176.17 is: 114,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,134.07 : 384,146.09 = 76,176.17 : x
  2. Step 2: Convert to fraction form
    256,134.07/384,146.09 = 76,176.17/x
  3. Step 3: Cross multiply
    256,134.07x = 384,146.09 × 76,176.17
  4. Step 4: Simplify right side
    256,134.07x = 29,262,777,856.68
  5. Step 5: Solve for x
    x = 29,262,777,856.68/256,134.07
  6. Step 6: Final answer
    x = 114,247.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.