Home / 133,039.16-199,551.44-80,434.52

Finding the Fourth Proportional to 133,039.16, 199,551.44 and 80,434.52

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Solution

The fourth proportional to 133,039.16, 199,551.44 and 80,434.52 is: 120,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,039.16 : 199,551.44 = 80,434.52 : x
  2. Step 2: Convert to fraction form
    133,039.16/199,551.44 = 80,434.52/x
  3. Step 3: Cross multiply
    133,039.16x = 199,551.44 × 80,434.52
  4. Step 4: Simplify right side
    133,039.16x = 16,050,824,291.71
  5. Step 5: Solve for x
    x = 16,050,824,291.71/133,039.16
  6. Step 6: Final answer
    x = 120,647.37

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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.