Home / 199,416.40-299,037.03-74,669.92

Finding the Fourth Proportional to 199,416.40, 299,037.03 and 74,669.92

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Solution

The fourth proportional to 199,416.40, 299,037.03 and 74,669.92 is: 111,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,416.40 : 299,037.03 = 74,669.92 : x
  2. Step 2: Convert to fraction form
    199,416.40/299,037.03 = 74,669.92/x
  3. Step 3: Cross multiply
    199,416.40x = 299,037.03 × 74,669.92
  4. Step 4: Simplify right side
    199,416.40x = 22,329,071,107.14
  5. Step 5: Solve for x
    x = 22,329,071,107.14/199,416.40
  6. Step 6: Final answer
    x = 111,972.09

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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.