Home / 147,587.72-203,673.40-80,519.72

Finding the Fourth Proportional to 147,587.72, 203,673.40 and 80,519.72

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Solution

The fourth proportional to 147,587.72, 203,673.40 and 80,519.72 is: 111,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,587.72 : 203,673.40 = 80,519.72 : x
  2. Step 2: Convert to fraction form
    147,587.72/203,673.40 = 80,519.72/x
  3. Step 3: Cross multiply
    147,587.72x = 203,673.40 × 80,519.72
  4. Step 4: Simplify right side
    147,587.72x = 16,399,723,919.78
  5. Step 5: Solve for x
    x = 16,399,723,919.78/147,587.72
  6. Step 6: Final answer
    x = 111,118.49

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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.