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Finding the Fourth Proportional to 139,626.01, 209,544.27 and 102,281.64

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Solution

The fourth proportional to 139,626.01, 209,544.27 and 102,281.64 is: 153,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,626.01 : 209,544.27 = 102,281.64 : x
  2. Step 2: Convert to fraction form
    139,626.01/209,544.27 = 102,281.64/x
  3. Step 3: Cross multiply
    139,626.01x = 209,544.27 × 102,281.64
  4. Step 4: Simplify right side
    139,626.01x = 21,432,530,418.86
  5. Step 5: Solve for x
    x = 21,432,530,418.86/139,626.01
  6. Step 6: Final answer
    x = 153,499.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.