Home / 119,178.43-178,767.49-30,431.89

Finding the Fourth Proportional to 119,178.43, 178,767.49 and 30,431.89

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Solution

The fourth proportional to 119,178.43, 178,767.49 and 30,431.89 is: 45,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,178.43 : 178,767.49 = 30,431.89 : x
  2. Step 2: Convert to fraction form
    119,178.43/178,767.49 = 30,431.89/x
  3. Step 3: Cross multiply
    119,178.43x = 178,767.49 × 30,431.89
  4. Step 4: Simplify right side
    119,178.43x = 5,440,232,591.26
  5. Step 5: Solve for x
    x = 5,440,232,591.26/119,178.43
  6. Step 6: Final answer
    x = 45,647.80

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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.