Home / 199,979.04-300,051.36-87,601.20

Finding the Fourth Proportional to 199,979.04, 300,051.36 and 87,601.20

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Solution

The fourth proportional to 199,979.04, 300,051.36 and 87,601.20 is: 131,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,979.04 : 300,051.36 = 87,601.20 : x
  2. Step 2: Convert to fraction form
    199,979.04/300,051.36 = 87,601.20/x
  3. Step 3: Cross multiply
    199,979.04x = 300,051.36 × 87,601.20
  4. Step 4: Simplify right side
    199,979.04x = 26,284,859,197.63
  5. Step 5: Solve for x
    x = 26,284,859,197.63/199,979.04
  6. Step 6: Final answer
    x = 131,438.07

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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.