Home / 323,892.24-485,783.28-87,182.16

Finding the Fourth Proportional to 323,892.24, 485,783.28 and 87,182.16

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Solution

The fourth proportional to 323,892.24, 485,783.28 and 87,182.16 is: 130,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,892.24 : 485,783.28 = 87,182.16 : x
  2. Step 2: Convert to fraction form
    323,892.24/485,783.28 = 87,182.16/x
  3. Step 3: Cross multiply
    323,892.24x = 485,783.28 × 87,182.16
  4. Step 4: Simplify right side
    323,892.24x = 42,351,635,642.28
  5. Step 5: Solve for x
    x = 42,351,635,642.28/323,892.24
  6. Step 6: Final answer
    x = 130,758.41

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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.