Home / 153,330.54-211,596.11-85,346.05

Finding the Fourth Proportional to 153,330.54, 211,596.11 and 85,346.05

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Solution

The fourth proportional to 153,330.54, 211,596.11 and 85,346.05 is: 117,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,330.54 : 211,596.11 = 85,346.05 : x
  2. Step 2: Convert to fraction form
    153,330.54/211,596.11 = 85,346.05/x
  3. Step 3: Cross multiply
    153,330.54x = 211,596.11 × 85,346.05
  4. Step 4: Simplify right side
    153,330.54x = 18,058,892,183.87
  5. Step 5: Solve for x
    x = 18,058,892,183.87/153,330.54
  6. Step 6: Final answer
    x = 117,777.53

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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.