Home / 107,541.88-161,345.64-54,988.28

Finding the Fourth Proportional to 107,541.88, 161,345.64 and 54,988.28

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Solution

The fourth proportional to 107,541.88, 161,345.64 and 54,988.28 is: 82,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,541.88 : 161,345.64 = 54,988.28 : x
  2. Step 2: Convert to fraction form
    107,541.88/161,345.64 = 54,988.28/x
  3. Step 3: Cross multiply
    107,541.88x = 161,345.64 × 54,988.28
  4. Step 4: Simplify right side
    107,541.88x = 8,872,119,229.10
  5. Step 5: Solve for x
    x = 8,872,119,229.10/107,541.88
  6. Step 6: Final answer
    x = 82,499.20

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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.