Home / 147,078.43-220,588.58-40,434.86

Finding the Fourth Proportional to 147,078.43, 220,588.58 and 40,434.86

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Solution

The fourth proportional to 147,078.43, 220,588.58 and 40,434.86 is: 60,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,078.43 : 220,588.58 = 40,434.86 : x
  2. Step 2: Convert to fraction form
    147,078.43/220,588.58 = 40,434.86/x
  3. Step 3: Cross multiply
    147,078.43x = 220,588.58 × 40,434.86
  4. Step 4: Simplify right side
    147,078.43x = 8,919,468,349.90
  5. Step 5: Solve for x
    x = 8,919,468,349.90/147,078.43
  6. Step 6: Final answer
    x = 60,644.30

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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.