Home / 133,041.26-199,455.90-76,817.60

Finding the Fourth Proportional to 133,041.26, 199,455.90 and 76,817.60

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Solution

The fourth proportional to 133,041.26, 199,455.90 and 76,817.60 is: 115,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,041.26 : 199,455.90 = 76,817.60 : x
  2. Step 2: Convert to fraction form
    133,041.26/199,455.90 = 76,817.60/x
  3. Step 3: Cross multiply
    133,041.26x = 199,455.90 × 76,817.60
  4. Step 4: Simplify right side
    133,041.26x = 15,321,723,543.84
  5. Step 5: Solve for x
    x = 15,321,723,543.84/133,041.26
  6. Step 6: Final answer
    x = 115,165.21

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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.