Home / 135,196.08-186,508.52-87,464.80

Finding the Fourth Proportional to 135,196.08, 186,508.52 and 87,464.80

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Solution

The fourth proportional to 135,196.08, 186,508.52 and 87,464.80 is: 120,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,196.08 : 186,508.52 = 87,464.80 : x
  2. Step 2: Convert to fraction form
    135,196.08/186,508.52 = 87,464.80/x
  3. Step 3: Cross multiply
    135,196.08x = 186,508.52 × 87,464.80
  4. Step 4: Simplify right side
    135,196.08x = 16,312,930,400.10
  5. Step 5: Solve for x
    x = 16,312,930,400.10/135,196.08
  6. Step 6: Final answer
    x = 120,661.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.