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Finding the Fourth Proportional to 125,770.50, 188,610.08 and 68,886.63

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Solution

The fourth proportional to 125,770.50, 188,610.08 and 68,886.63 is: 103,304.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,770.50 : 188,610.08 = 68,886.63 : x
  2. Step 2: Convert to fraction form
    125,770.50/188,610.08 = 68,886.63/x
  3. Step 3: Cross multiply
    125,770.50x = 188,610.08 × 68,886.63
  4. Step 4: Simplify right side
    125,770.50x = 12,992,712,450.80
  5. Step 5: Solve for x
    x = 12,992,712,450.80/125,770.50
  6. Step 6: Final answer
    x = 103,304.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.