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Finding the Fourth Proportional to 173,620.40, 239,595 and 98,169.20

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Solution

The fourth proportional to 173,620.40, 239,595 and 98,169.20 is: 135,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,620.40 : 239,595 = 98,169.20 : x
  2. Step 2: Convert to fraction form
    173,620.40/239,595 = 98,169.20/x
  3. Step 3: Cross multiply
    173,620.40x = 239,595 × 98,169.20
  4. Step 4: Simplify right side
    173,620.40x = 23,520,849,474
  5. Step 5: Solve for x
    x = 23,520,849,474/173,620.40
  6. Step 6: Final answer
    x = 135,472.84

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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.