Home / 125,355.10-172,979.73-68,766.49

Finding the Fourth Proportional to 125,355.10, 172,979.73 and 68,766.49

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Solution

The fourth proportional to 125,355.10, 172,979.73 and 68,766.49 is: 94,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,355.10 : 172,979.73 = 68,766.49 : x
  2. Step 2: Convert to fraction form
    125,355.10/172,979.73 = 68,766.49/x
  3. Step 3: Cross multiply
    125,355.10x = 172,979.73 × 68,766.49
  4. Step 4: Simplify right side
    125,355.10x = 11,895,208,873.25
  5. Step 5: Solve for x
    x = 11,895,208,873.25/125,355.10
  6. Step 6: Final answer
    x = 94,892.10

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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.