Home / 173,987.29-261,006.86-80,502.49

Finding the Fourth Proportional to 173,987.29, 261,006.86 and 80,502.49

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Solution

The fourth proportional to 173,987.29, 261,006.86 and 80,502.49 is: 120,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,987.29 : 261,006.86 = 80,502.49 : x
  2. Step 2: Convert to fraction form
    173,987.29/261,006.86 = 80,502.49/x
  3. Step 3: Cross multiply
    173,987.29x = 261,006.86 × 80,502.49
  4. Step 4: Simplify right side
    173,987.29x = 21,011,702,137.08
  5. Step 5: Solve for x
    x = 21,011,702,137.08/173,987.29
  6. Step 6: Final answer
    x = 120,765.73

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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.