Home / 125,396.25-188,158.86-83,305.41

Finding the Fourth Proportional to 125,396.25, 188,158.86 and 83,305.41

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Solution

The fourth proportional to 125,396.25, 188,158.86 and 83,305.41 is: 125,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,396.25 : 188,158.86 = 83,305.41 : x
  2. Step 2: Convert to fraction form
    125,396.25/188,158.86 = 83,305.41/x
  3. Step 3: Cross multiply
    125,396.25x = 188,158.86 × 83,305.41
  4. Step 4: Simplify right side
    125,396.25x = 15,674,650,977.43
  5. Step 5: Solve for x
    x = 15,674,650,977.43/125,396.25
  6. Step 6: Final answer
    x = 125,000.95

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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.