Home / 117,435.27-161,836.95-115,276.02

Finding the Fourth Proportional to 117,435.27, 161,836.95 and 115,276.02

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Solution

The fourth proportional to 117,435.27, 161,836.95 and 115,276.02 is: 158,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435.27 : 161,836.95 = 115,276.02 : x
  2. Step 2: Convert to fraction form
    117,435.27/161,836.95 = 115,276.02/x
  3. Step 3: Cross multiply
    117,435.27x = 161,836.95 × 115,276.02
  4. Step 4: Simplify right side
    117,435.27x = 18,655,919,484.94
  5. Step 5: Solve for x
    x = 18,655,919,484.94/117,435.27
  6. Step 6: Final answer
    x = 158,861.30

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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.