Home / 125,143.22-172,701.96-68,554.60

Finding the Fourth Proportional to 125,143.22, 172,701.96 and 68,554.60

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Solution

The fourth proportional to 125,143.22, 172,701.96 and 68,554.60 is: 94,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,143.22 : 172,701.96 = 68,554.60 : x
  2. Step 2: Convert to fraction form
    125,143.22/172,701.96 = 68,554.60/x
  3. Step 3: Cross multiply
    125,143.22x = 172,701.96 × 68,554.60
  4. Step 4: Simplify right side
    125,143.22x = 11,839,513,787.02
  5. Step 5: Solve for x
    x = 11,839,513,787.02/125,143.22
  6. Step 6: Final answer
    x = 94,607.71

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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.