Home / 119,166.60-178,749.76-30,420.12

Finding the Fourth Proportional to 119,166.60, 178,749.76 and 30,420.12

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Solution

The fourth proportional to 119,166.60, 178,749.76 and 30,420.12 is: 45,630.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,166.60 : 178,749.76 = 30,420.12 : x
  2. Step 2: Convert to fraction form
    119,166.60/178,749.76 = 30,420.12/x
  3. Step 3: Cross multiply
    119,166.60x = 178,749.76 × 30,420.12
  4. Step 4: Simplify right side
    119,166.60x = 5,437,589,149.17
  5. Step 5: Solve for x
    x = 5,437,589,149.17/119,166.60
  6. Step 6: Final answer
    x = 45,630.14

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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.