Home / 125,258.22-172,855.98-68,669.64

Finding the Fourth Proportional to 125,258.22, 172,855.98 and 68,669.64

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Solution

The fourth proportional to 125,258.22, 172,855.98 and 68,669.64 is: 94,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,258.22 : 172,855.98 = 68,669.64 : x
  2. Step 2: Convert to fraction form
    125,258.22/172,855.98 = 68,669.64/x
  3. Step 3: Cross multiply
    125,258.22x = 172,855.98 × 68,669.64
  4. Step 4: Simplify right side
    125,258.22x = 11,869,957,918.45
  5. Step 5: Solve for x
    x = 11,869,957,918.45/125,258.22
  6. Step 6: Final answer
    x = 94,763.90

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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.