Home / 125,428.29-188,045.83-108,765.37

Finding the Fourth Proportional to 125,428.29, 188,045.83 and 108,765.37

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Solution

The fourth proportional to 125,428.29, 188,045.83 and 108,765.37 is: 163,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,428.29 : 188,045.83 = 108,765.37 : x
  2. Step 2: Convert to fraction form
    125,428.29/188,045.83 = 108,765.37/x
  3. Step 3: Cross multiply
    125,428.29x = 188,045.83 × 108,765.37
  4. Step 4: Simplify right side
    125,428.29x = 20,452,874,276.91
  5. Step 5: Solve for x
    x = 20,452,874,276.91/125,428.29
  6. Step 6: Final answer
    x = 163,064.28

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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.