Home / 119,289.78-178,934.67-40,459.37

Finding the Fourth Proportional to 119,289.78, 178,934.67 and 40,459.37

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Solution

The fourth proportional to 119,289.78, 178,934.67 and 40,459.37 is: 60,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,289.78 : 178,934.67 = 40,459.37 : x
  2. Step 2: Convert to fraction form
    119,289.78/178,934.67 = 40,459.37/x
  3. Step 3: Cross multiply
    119,289.78x = 178,934.67 × 40,459.37
  4. Step 4: Simplify right side
    119,289.78x = 7,239,583,124.68
  5. Step 5: Solve for x
    x = 7,239,583,124.68/119,289.78
  6. Step 6: Final answer
    x = 60,689.05

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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.