Home / 236,130.39-354,113.57-78,321.94

Finding the Fourth Proportional to 236,130.39, 354,113.57 and 78,321.94

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Solution

The fourth proportional to 236,130.39, 354,113.57 and 78,321.94 is: 117,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,130.39 : 354,113.57 = 78,321.94 : x
  2. Step 2: Convert to fraction form
    236,130.39/354,113.57 = 78,321.94/x
  3. Step 3: Cross multiply
    236,130.39x = 354,113.57 × 78,321.94
  4. Step 4: Simplify right side
    236,130.39x = 27,734,861,093.25
  5. Step 5: Solve for x
    x = 27,734,861,093.25/236,130.39
  6. Step 6: Final answer
    x = 117,455.70

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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.