Home / 120,558.61-180,867.89-36,316.86

Finding the Fourth Proportional to 120,558.61, 180,867.89 and 36,316.86

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Solution

The fourth proportional to 120,558.61, 180,867.89 and 36,316.86 is: 54,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,558.61 : 180,867.89 = 36,316.86 : x
  2. Step 2: Convert to fraction form
    120,558.61/180,867.89 = 36,316.86/x
  3. Step 3: Cross multiply
    120,558.61x = 180,867.89 × 36,316.86
  4. Step 4: Simplify right side
    120,558.61x = 6,568,553,839.63
  5. Step 5: Solve for x
    x = 6,568,553,839.63/120,558.61
  6. Step 6: Final answer
    x = 54,484.32

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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.