Home / 143,359.14-197,847.58-79,702.86

Finding the Fourth Proportional to 143,359.14, 197,847.58 and 79,702.86

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Solution

The fourth proportional to 143,359.14, 197,847.58 and 79,702.86 is: 109,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,359.14 : 197,847.58 = 79,702.86 : x
  2. Step 2: Convert to fraction form
    143,359.14/197,847.58 = 79,702.86/x
  3. Step 3: Cross multiply
    143,359.14x = 197,847.58 × 79,702.86
  4. Step 4: Simplify right side
    143,359.14x = 15,769,017,970.08
  5. Step 5: Solve for x
    x = 15,769,017,970.08/143,359.14
  6. Step 6: Final answer
    x = 109,996.60

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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.