Home / 125,358.94-172,999.83-68,771.98

Finding the Fourth Proportional to 125,358.94, 172,999.83 and 68,771.98

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Solution

The fourth proportional to 125,358.94, 172,999.83 and 68,771.98 is: 94,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,358.94 : 172,999.83 = 68,771.98 : x
  2. Step 2: Convert to fraction form
    125,358.94/172,999.83 = 68,771.98/x
  3. Step 3: Cross multiply
    125,358.94x = 172,999.83 × 68,771.98
  4. Step 4: Simplify right side
    125,358.94x = 11,897,540,848.76
  5. Step 5: Solve for x
    x = 11,897,540,848.76/125,358.94
  6. Step 6: Final answer
    x = 94,907.80

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1.5x scale

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.