Home / 161,785.30-242,639.07-82,858.90

Finding the Fourth Proportional to 161,785.30, 242,639.07 and 82,858.90

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Solution

The fourth proportional to 161,785.30, 242,639.07 and 82,858.90 is: 124,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,785.30 : 242,639.07 = 82,858.90 : x
  2. Step 2: Convert to fraction form
    161,785.30/242,639.07 = 82,858.90/x
  3. Step 3: Cross multiply
    161,785.30x = 242,639.07 × 82,858.90
  4. Step 4: Simplify right side
    161,785.30x = 20,104,806,437.22
  5. Step 5: Solve for x
    x = 20,104,806,437.22/161,785.30
  6. Step 6: Final answer
    x = 124,268.44

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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.