Home / 171,869.16-257,816.07-71,928.75

Finding the Fourth Proportional to 171,869.16, 257,816.07 and 71,928.75

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Solution

The fourth proportional to 171,869.16, 257,816.07 and 71,928.75 is: 107,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,869.16 : 257,816.07 = 71,928.75 : x
  2. Step 2: Convert to fraction form
    171,869.16/257,816.07 = 71,928.75/x
  3. Step 3: Cross multiply
    171,869.16x = 257,816.07 × 71,928.75
  4. Step 4: Simplify right side
    171,869.16x = 18,544,387,645.01
  5. Step 5: Solve for x
    x = 18,544,387,645.01/171,869.16
  6. Step 6: Final answer
    x = 107,898.29

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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.