Home / 122,290.18-168,784.66-79,322.92

Finding the Fourth Proportional to 122,290.18, 168,784.66 and 79,322.92

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Solution

The fourth proportional to 122,290.18, 168,784.66 and 79,322.92 is: 109,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,290.18 : 168,784.66 = 79,322.92 : x
  2. Step 2: Convert to fraction form
    122,290.18/168,784.66 = 79,322.92/x
  3. Step 3: Cross multiply
    122,290.18x = 168,784.66 × 79,322.92
  4. Step 4: Simplify right side
    122,290.18x = 13,388,492,262.82
  5. Step 5: Solve for x
    x = 13,388,492,262.82/122,290.18
  6. Step 6: Final answer
    x = 109,481.33

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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.