Home / 117,875.13-162,690.10-66,892.61

Finding the Fourth Proportional to 117,875.13, 162,690.10 and 66,892.61

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Solution

The fourth proportional to 117,875.13, 162,690.10 and 66,892.61 is: 92,324.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,875.13 : 162,690.10 = 66,892.61 : x
  2. Step 2: Convert to fraction form
    117,875.13/162,690.10 = 66,892.61/x
  3. Step 3: Cross multiply
    117,875.13x = 162,690.10 × 66,892.61
  4. Step 4: Simplify right side
    117,875.13x = 10,882,765,410.16
  5. Step 5: Solve for x
    x = 10,882,765,410.16/117,875.13
  6. Step 6: Final answer
    x = 92,324.53

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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.