Home / 153,286.54-211,536.84-85,306.38

Finding the Fourth Proportional to 153,286.54, 211,536.84 and 85,306.38

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Solution

The fourth proportional to 153,286.54, 211,536.84 and 85,306.38 is: 117,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,286.54 : 211,536.84 = 85,306.38 : x
  2. Step 2: Convert to fraction form
    153,286.54/211,536.84 = 85,306.38/x
  3. Step 3: Cross multiply
    153,286.54x = 211,536.84 × 85,306.38
  4. Step 4: Simplify right side
    153,286.54x = 18,045,442,057.04
  5. Step 5: Solve for x
    x = 18,045,442,057.04/153,286.54
  6. Step 6: Final answer
    x = 117,723.59

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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.