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Finding the Fourth Proportional to 129,999.80, 194,870.10 and 59,756.60

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Solution

The fourth proportional to 129,999.80, 194,870.10 and 59,756.60 is: 89,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,999.80 : 194,870.10 = 59,756.60 : x
  2. Step 2: Convert to fraction form
    129,999.80/194,870.10 = 59,756.60/x
  3. Step 3: Cross multiply
    129,999.80x = 194,870.10 × 59,756.60
  4. Step 4: Simplify right side
    129,999.80x = 11,644,774,617.66
  5. Step 5: Solve for x
    x = 11,644,774,617.66/129,999.80
  6. Step 6: Final answer
    x = 89,575.33

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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.