Home / 199,458.09-275,167.67-127,815.21

Finding the Fourth Proportional to 199,458.09, 275,167.67 and 127,815.21

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Solution

The fourth proportional to 199,458.09, 275,167.67 and 127,815.21 is: 176,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,458.09 : 275,167.67 = 127,815.21 : x
  2. Step 2: Convert to fraction form
    199,458.09/275,167.67 = 127,815.21/x
  3. Step 3: Cross multiply
    199,458.09x = 275,167.67 × 127,815.21
  4. Step 4: Simplify right side
    199,458.09x = 35,170,612,887.18
  5. Step 5: Solve for x
    x = 35,170,612,887.18/199,458.09
  6. Step 6: Final answer
    x = 176,330.84

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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.