Home / 115,581.12-173,421.77-40,754.72

Finding the Fourth Proportional to 115,581.12, 173,421.77 and 40,754.72

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Solution

The fourth proportional to 115,581.12, 173,421.77 and 40,754.72 is: 61,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,581.12 : 173,421.77 = 40,754.72 : x
  2. Step 2: Convert to fraction form
    115,581.12/173,421.77 = 40,754.72/x
  3. Step 3: Cross multiply
    115,581.12x = 173,421.77 × 40,754.72
  4. Step 4: Simplify right side
    115,581.12x = 7,067,754,607.37
  5. Step 5: Solve for x
    x = 7,067,754,607.37/115,581.12
  6. Step 6: Final answer
    x = 61,149.73

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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.