Home / 125,171.45-172,735.85-67,811.85

Finding the Fourth Proportional to 125,171.45, 172,735.85 and 67,811.85

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Solution

The fourth proportional to 125,171.45, 172,735.85 and 67,811.85 is: 93,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,171.45 : 172,735.85 = 67,811.85 : x
  2. Step 2: Convert to fraction form
    125,171.45/172,735.85 = 67,811.85/x
  3. Step 3: Cross multiply
    125,171.45x = 172,735.85 × 67,811.85
  4. Step 4: Simplify right side
    125,171.45x = 11,713,537,210.76
  5. Step 5: Solve for x
    x = 11,713,537,210.76/125,171.45
  6. Step 6: Final answer
    x = 93,579.95

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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.