Home / 147,930.36-204,158.16-87,520.44

Finding the Fourth Proportional to 147,930.36, 204,158.16 and 87,520.44

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Solution

The fourth proportional to 147,930.36, 204,158.16 and 87,520.44 is: 120,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,930.36 : 204,158.16 = 87,520.44 : x
  2. Step 2: Convert to fraction form
    147,930.36/204,158.16 = 87,520.44/x
  3. Step 3: Cross multiply
    147,930.36x = 204,158.16 × 87,520.44
  4. Step 4: Simplify right side
    147,930.36x = 17,868,011,992.79
  5. Step 5: Solve for x
    x = 17,868,011,992.79/147,930.36
  6. Step 6: Final answer
    x = 120,786.65

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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.