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Finding the Fourth Proportional to 145,855.44, 219,178.44 and 79,344.72

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Solution

The fourth proportional to 145,855.44, 219,178.44 and 79,344.72 is: 119,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,855.44 : 219,178.44 = 79,344.72 : x
  2. Step 2: Convert to fraction form
    145,855.44/219,178.44 = 79,344.72/x
  3. Step 3: Cross multiply
    145,855.44x = 219,178.44 × 79,344.72
  4. Step 4: Simplify right side
    145,855.44x = 17,390,651,951.84
  5. Step 5: Solve for x
    x = 17,390,651,951.84/145,855.44
  6. Step 6: Final answer
    x = 119,232.11

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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.