Home / 171,454.28-257,056.80-71,643.04

Finding the Fourth Proportional to 171,454.28, 257,056.80 and 71,643.04

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Solution

The fourth proportional to 171,454.28, 257,056.80 and 71,643.04 is: 107,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,454.28 : 257,056.80 = 71,643.04 : x
  2. Step 2: Convert to fraction form
    171,454.28/257,056.80 = 71,643.04/x
  3. Step 3: Cross multiply
    171,454.28x = 257,056.80 × 71,643.04
  4. Step 4: Simplify right side
    171,454.28x = 18,416,330,604.67
  5. Step 5: Solve for x
    x = 18,416,330,604.67/171,454.28
  6. Step 6: Final answer
    x = 107,412.49

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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.