Home / 125,268.39-187,431.75-87,901.38

Finding the Fourth Proportional to 125,268.39, 187,431.75 and 87,901.38

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Solution

The fourth proportional to 125,268.39, 187,431.75 and 87,901.38 is: 131,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,268.39 : 187,431.75 = 87,901.38 : x
  2. Step 2: Convert to fraction form
    125,268.39/187,431.75 = 87,901.38/x
  3. Step 3: Cross multiply
    125,268.39x = 187,431.75 × 87,901.38
  4. Step 4: Simplify right side
    125,268.39x = 16,475,509,480.82
  5. Step 5: Solve for x
    x = 16,475,509,480.82/125,268.39
  6. Step 6: Final answer
    x = 131,521.68

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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.