Home / 218,694.06-301,799.52-128,103.66

Finding the Fourth Proportional to 218,694.06, 301,799.52 and 128,103.66

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Solution

The fourth proportional to 218,694.06, 301,799.52 and 128,103.66 is: 176,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,694.06 : 301,799.52 = 128,103.66 : x
  2. Step 2: Convert to fraction form
    218,694.06/301,799.52 = 128,103.66/x
  3. Step 3: Cross multiply
    218,694.06x = 301,799.52 × 128,103.66
  4. Step 4: Simplify right side
    218,694.06x = 38,661,623,098.24
  5. Step 5: Solve for x
    x = 38,661,623,098.24/218,694.06
  6. Step 6: Final answer
    x = 176,784.06

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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.