Home / 125,209.84-172,790.94-68,620

Finding the Fourth Proportional to 125,209.84, 172,790.94 and 68,620

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Solution

The fourth proportional to 125,209.84, 172,790.94 and 68,620 is: 94,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,209.84 : 172,790.94 = 68,620 : x
  2. Step 2: Convert to fraction form
    125,209.84/172,790.94 = 68,620/x
  3. Step 3: Cross multiply
    125,209.84x = 172,790.94 × 68,620
  4. Step 4: Simplify right side
    125,209.84x = 11,856,914,302.80
  5. Step 5: Solve for x
    x = 11,856,914,302.80/125,209.84
  6. Step 6: Final answer
    x = 94,696.35

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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.