Home / 109,906.41-151,672.56-64,590.40

Finding the Fourth Proportional to 109,906.41, 151,672.56 and 64,590.40

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Solution

The fourth proportional to 109,906.41, 151,672.56 and 64,590.40 is: 89,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,906.41 : 151,672.56 = 64,590.40 : x
  2. Step 2: Convert to fraction form
    109,906.41/151,672.56 = 64,590.40/x
  3. Step 3: Cross multiply
    109,906.41x = 151,672.56 × 64,590.40
  4. Step 4: Simplify right side
    109,906.41x = 9,796,591,319.42
  5. Step 5: Solve for x
    x = 9,796,591,319.42/109,906.41
  6. Step 6: Final answer
    x = 89,135.76

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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.