Home / 137,174.11-189,317.66-83,455.92

Finding the Fourth Proportional to 137,174.11, 189,317.66 and 83,455.92

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Solution

The fourth proportional to 137,174.11, 189,317.66 and 83,455.92 is: 115,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,174.11 : 189,317.66 = 83,455.92 : x
  2. Step 2: Convert to fraction form
    137,174.11/189,317.66 = 83,455.92/x
  3. Step 3: Cross multiply
    137,174.11x = 189,317.66 × 83,455.92
  4. Step 4: Simplify right side
    137,174.11x = 15,799,679,070.27
  5. Step 5: Solve for x
    x = 15,799,679,070.27/137,174.11
  6. Step 6: Final answer
    x = 115,179.75

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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.