Home / 114,979.80-172,412.04-72,944.31

Finding the Fourth Proportional to 114,979.80, 172,412.04 and 72,944.31

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Solution

The fourth proportional to 114,979.80, 172,412.04 and 72,944.31 is: 109,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,979.80 : 172,412.04 = 72,944.31 : x
  2. Step 2: Convert to fraction form
    114,979.80/172,412.04 = 72,944.31/x
  3. Step 3: Cross multiply
    114,979.80x = 172,412.04 × 72,944.31
  4. Step 4: Simplify right side
    114,979.80x = 12,576,477,293.49
  5. Step 5: Solve for x
    x = 12,576,477,293.49/114,979.80
  6. Step 6: Final answer
    x = 109,379.88

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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.