Home / 119,162.03-178,742.90-30,415.55

Finding the Fourth Proportional to 119,162.03, 178,742.90 and 30,415.55

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Solution

The fourth proportional to 119,162.03, 178,742.90 and 30,415.55 is: 45,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,162.03 : 178,742.90 = 30,415.55 : x
  2. Step 2: Convert to fraction form
    119,162.03/178,742.90 = 30,415.55/x
  3. Step 3: Cross multiply
    119,162.03x = 178,742.90 × 30,415.55
  4. Step 4: Simplify right side
    119,162.03x = 5,436,562,566.30
  5. Step 5: Solve for x
    x = 5,436,562,566.30/119,162.03
  6. Step 6: Final answer
    x = 45,623.28

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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.