Home / 129,869.12-195,143.88-113,270.60

Finding the Fourth Proportional to 129,869.12, 195,143.88 and 113,270.60

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Solution

The fourth proportional to 129,869.12, 195,143.88 and 113,270.60 is: 170,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,869.12 : 195,143.88 = 113,270.60 : x
  2. Step 2: Convert to fraction form
    129,869.12/195,143.88 = 113,270.60/x
  3. Step 3: Cross multiply
    129,869.12x = 195,143.88 × 113,270.60
  4. Step 4: Simplify right side
    129,869.12x = 22,104,064,373.93
  5. Step 5: Solve for x
    x = 22,104,064,373.93/129,869.12
  6. Step 6: Final answer
    x = 170,202.62

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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.