Home / 125,429.40-188,144.10-111,651.30

Finding the Fourth Proportional to 125,429.40, 188,144.10 and 111,651.30

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Solution

The fourth proportional to 125,429.40, 188,144.10 and 111,651.30 is: 167,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,429.40 : 188,144.10 = 111,651.30 : x
  2. Step 2: Convert to fraction form
    125,429.40/188,144.10 = 111,651.30/x
  3. Step 3: Cross multiply
    125,429.40x = 188,144.10 × 111,651.30
  4. Step 4: Simplify right side
    125,429.40x = 21,006,533,352.33
  5. Step 5: Solve for x
    x = 21,006,533,352.33/125,429.40
  6. Step 6: Final answer
    x = 167,476.95

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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.