Home / 117,083.12-161,592.90-76,913.24

Finding the Fourth Proportional to 117,083.12, 161,592.90 and 76,913.24

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Solution

The fourth proportional to 117,083.12, 161,592.90 and 76,913.24 is: 106,152.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,083.12 : 161,592.90 = 76,913.24 : x
  2. Step 2: Convert to fraction form
    117,083.12/161,592.90 = 76,913.24/x
  3. Step 3: Cross multiply
    117,083.12x = 161,592.90 × 76,913.24
  4. Step 4: Simplify right side
    117,083.12x = 12,428,633,500.00
  5. Step 5: Solve for x
    x = 12,428,633,500.00/117,083.12
  6. Step 6: Final answer
    x = 106,152.22

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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.