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Finding the Fourth Proportional to 129,984.40, 194,825.40 and 59,870.80

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Solution

The fourth proportional to 129,984.40, 194,825.40 and 59,870.80 is: 89,736.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,984.40 : 194,825.40 = 59,870.80 : x
  2. Step 2: Convert to fraction form
    129,984.40/194,825.40 = 59,870.80/x
  3. Step 3: Cross multiply
    129,984.40x = 194,825.40 × 59,870.80
  4. Step 4: Simplify right side
    129,984.40x = 11,664,352,558.32
  5. Step 5: Solve for x
    x = 11,664,352,558.32/129,984.40
  6. Step 6: Final answer
    x = 89,736.56

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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.