Home / 119,979.36-179,950.52-40,018.72

Finding the Fourth Proportional to 119,979.36, 179,950.52 and 40,018.72

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Solution

The fourth proportional to 119,979.36, 179,950.52 and 40,018.72 is: 60,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,979.36 : 179,950.52 = 40,018.72 : x
  2. Step 2: Convert to fraction form
    119,979.36/179,950.52 = 40,018.72/x
  3. Step 3: Cross multiply
    119,979.36x = 179,950.52 × 40,018.72
  4. Step 4: Simplify right side
    119,979.36x = 7,201,389,473.73
  5. Step 5: Solve for x
    x = 7,201,389,473.73/119,979.36
  6. Step 6: Final answer
    x = 60,021.90

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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.