Home / 153,540.03-211,882.05-85,556.73

Finding the Fourth Proportional to 153,540.03, 211,882.05 and 85,556.73

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Solution

The fourth proportional to 153,540.03, 211,882.05 and 85,556.73 is: 118,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,540.03 : 211,882.05 = 85,556.73 : x
  2. Step 2: Convert to fraction form
    153,540.03/211,882.05 = 85,556.73/x
  3. Step 3: Cross multiply
    153,540.03x = 211,882.05 × 85,556.73
  4. Step 4: Simplify right side
    153,540.03x = 18,127,935,343.70
  5. Step 5: Solve for x
    x = 18,127,935,343.70/153,540.03
  6. Step 6: Final answer
    x = 118,066.51

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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.