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Finding the Fourth Proportional to 139,594.28, 209,308.20 and 94,670.87

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Solution

The fourth proportional to 139,594.28, 209,308.20 and 94,670.87 is: 141,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,594.28 : 209,308.20 = 94,670.87 : x
  2. Step 2: Convert to fraction form
    139,594.28/209,308.20 = 94,670.87/x
  3. Step 3: Cross multiply
    139,594.28x = 209,308.20 × 94,670.87
  4. Step 4: Simplify right side
    139,594.28x = 19,815,389,442.05
  5. Step 5: Solve for x
    x = 19,815,389,442.05/139,594.28
  6. Step 6: Final answer
    x = 141,949.86

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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.