Home / 122,403.48-168,894.36-82,175.64

Finding the Fourth Proportional to 122,403.48, 168,894.36 and 82,175.64

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Solution

The fourth proportional to 122,403.48, 168,894.36 and 82,175.64 is: 113,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,403.48 : 168,894.36 = 82,175.64 : x
  2. Step 2: Convert to fraction form
    122,403.48/168,894.36 = 82,175.64/x
  3. Step 3: Cross multiply
    122,403.48x = 168,894.36 × 82,175.64
  4. Step 4: Simplify right side
    122,403.48x = 13,879,002,125.39
  5. Step 5: Solve for x
    x = 13,879,002,125.39/122,403.48
  6. Step 6: Final answer
    x = 113,387.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.