Home / 221,010.27-304,995.39-129,134.94

Finding the Fourth Proportional to 221,010.27, 304,995.39 and 129,134.94

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Solution

The fourth proportional to 221,010.27, 304,995.39 and 129,134.94 is: 178,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,010.27 : 304,995.39 = 129,134.94 : x
  2. Step 2: Convert to fraction form
    221,010.27/304,995.39 = 129,134.94/x
  3. Step 3: Cross multiply
    221,010.27x = 304,995.39 × 129,134.94
  4. Step 4: Simplify right side
    221,010.27x = 39,385,561,387.93
  5. Step 5: Solve for x
    x = 39,385,561,387.93/221,010.27
  6. Step 6: Final answer
    x = 178,206.93

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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.