Home / 129,795.20-194,692.80-124,265.60

Finding the Fourth Proportional to 129,795.20, 194,692.80 and 124,265.60

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Solution

The fourth proportional to 129,795.20, 194,692.80 and 124,265.60 is: 186,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,795.20 : 194,692.80 = 124,265.60 : x
  2. Step 2: Convert to fraction form
    129,795.20/194,692.80 = 124,265.60/x
  3. Step 3: Cross multiply
    129,795.20x = 194,692.80 × 124,265.60
  4. Step 4: Simplify right side
    129,795.20x = 24,193,617,607.68
  5. Step 5: Solve for x
    x = 24,193,617,607.68/129,795.20
  6. Step 6: Final answer
    x = 186,398.40

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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.