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Finding the Fourth Proportional to 159,615, 239,423.70 and 70,844.64

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Solution

The fourth proportional to 159,615, 239,423.70 and 70,844.64 is: 106,267.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,615 : 239,423.70 = 70,844.64 : x
  2. Step 2: Convert to fraction form
    159,615/239,423.70 = 70,844.64/x
  3. Step 3: Cross multiply
    159,615x = 239,423.70 × 70,844.64
  4. Step 4: Simplify right side
    159,615x = 16,961,885,833.97
  5. Step 5: Solve for x
    x = 16,961,885,833.97/159,615
  6. Step 6: Final answer
    x = 106,267.49

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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.