Home / 119,155.08-178,732.52-30,408.60

Finding the Fourth Proportional to 119,155.08, 178,732.52 and 30,408.60

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Solution

The fourth proportional to 119,155.08, 178,732.52 and 30,408.60 is: 45,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,155.08 : 178,732.52 = 30,408.60 : x
  2. Step 2: Convert to fraction form
    119,155.08/178,732.52 = 30,408.60/x
  3. Step 3: Cross multiply
    119,155.08x = 178,732.52 × 30,408.60
  4. Step 4: Simplify right side
    119,155.08x = 5,435,005,707.67
  5. Step 5: Solve for x
    x = 5,435,005,707.67/119,155.08
  6. Step 6: Final answer
    x = 45,612.87

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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.